CN102164440B - Lighting device and illumination fixture using thereof - Google Patents
Lighting device and illumination fixture using thereof Download PDFInfo
- Publication number
- CN102164440B CN102164440B CN2011100440775A CN201110044077A CN102164440B CN 102164440 B CN102164440 B CN 102164440B CN 2011100440775 A CN2011100440775 A CN 2011100440775A CN 201110044077 A CN201110044077 A CN 201110044077A CN 102164440 B CN102164440 B CN 102164440B
- Authority
- CN
- China
- Prior art keywords
- output
- discharge lamp
- switch element
- lamp
- circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/14—Circuit arrangements
- H05B41/26—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
- H05B41/28—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters
- H05B41/295—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices and specially adapted for lamps with preheating electrodes, e.g. for fluorescent lamps
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B35/00—Electric light sources using a combination of different types of light generation
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
- H05B45/3725—Switched mode power supply [SMPS]
- H05B45/375—Switched mode power supply [SMPS] using buck topology
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention provides a lighting device which enables a user of an illumination fixture to select any of a fluorescent lamp and a DC lighting light source as represented by a light emitting diode, and further realizes safe use. [Means for Settlement] A lighting device has first control means 11 adapted to output a driving signal to switching elements Q1 and Q2 which are used to drive a discharge lamp La at high frequency via a resonance part 4, and second control means 12 adapted to output a driving signal to a switching element Q3 of a voltage conversion circuit (i.e. DC/DC conversion part 5) which steps down an output of a DC power source circuit 1, and the lighting device includes an inductor (i.e. preheating transformer T1) having secondary windings n2 and n3 for use in supplying a preheating current to a filament of the discharge lamp La, and a rectifier DB for rectifying a voltage in an output end of at least one of the secondary windings n2 and n3 (i.e. secondary winding n2), wherein an output path of the voltage conversion circuit (i.e. DC/DC conversion part 5) is connected in parallel with an output path of the rectifier DB.
Description
Technical field
The present invention relates to a kind of ignition device and use the ligthing paraphernalia of this ignition device, this ignition device carries out high-frequency lighting control to discharge lamp, or the light source that LED etc. is lit a lamp with direct current carries out the direct current control of lighting a lamp.
Background technology
In the past, as illumination light source, fluorescent lamp was main flow, and the ligthing paraphernalia that carries out high-frequency lighting with the inversion ignition device is extensively universal.The inversion ignition device possesses usually: the series circuit of 2 switch elements is connected on the output of DC power supply; And resonant circuit, be connected in parallel with a switch element, and comprise fluorescent lamp.Described 2 switch elements are according to the on/off that hockets of the driving signal from drive circuit output, and the high-frequency ac electric power that will produce by the resonance effect of described resonant circuit offers fluorescent lamp.As well-known problem, for when the on/off switch element, make switching current carry out stagnant action mutually, aspect the frequency of action of being lit a lamp, suitably set the impedance of lighting a lamp with capacitor and discharge lamp of inductor for resonance, resonance, in order to switch element is not caused to superfluous burden.
On the other hand, as the electric light source of take beyond the discharge lamp that fluorescent lamp is representative, in recent years, light-emitting diode receives much concern.Especially aspect the life-span, light-emitting diode, than fluorescent lamp excellence, improves by technology from now on, expects that efficiency also surpasses fluorescent lamp.But light-emitting diode is different from discharge lamp, because the lamp circuit by the output direct current power is lit a lamp, so can not directly use inversion ignition device in the past, the special DC power supply that need to adapt with the characteristic of light-emitting diode.
Patent documentation 1: TOHKEMY 2009-272088 communique
Patent documentation 2: TOHKEMY 2009-87588 communique
Patent documentation 3: TOHKEMY 2003-264090 communique
Current, used the luminous efficiency of the ligthing paraphernalia of light-emitting diode gradually basically to equate with the ligthing paraphernalia that has used fluorescent lamp, but because the price of light-emitting diode itself is relatively high, if so to send two lamps as the FLR40 of the main flow of existing fluorescent lamp with utensil light about equally, need to use the light-emitting diode of 50～100 left and right, the ligthing paraphernalia price is very high.
So, a kind of light emitting diode illuminating apparatus that can be installed on fluorescent-lamp-use ligthing paraphernalia and ignition device has been proposed, make the user of ligthing paraphernalia can select arbitrarily fluorescent lamp and light-emitting diode.
As described in Patent Document 1, use in the past the ligthing paraphernalia of fluorescent lamp, roughly be classified as actuated type, quick-starting direct, inverse type, even also there are how many different problems in same way as from voltage, the electric current of stabilizer output because production firm is different.And, in the inverse type lamp circuit, operating frequency is set as diverse value by production firm in being greater than the scope of 40kHz, also fully different at discharge lamp dismounting, the defencive function of lamp aspect the life-span etc.In addition, in the inverse type lamp circuit, aspect the frequency of action in the above described manner, seek inductor for resonance, capacitor for resonance, and the coupling of discharge lamp impedance, thereby reduce the burden of switch element, if but connect the diverse light-emitting diode of impedance of impedance and discharge lamp on this lamp circuit, cause the possibility of light-emitting diode breakage or lamp circuit breakage very high.And, by connecting luminous diode, cause the defencive function of inverse type lamp circuit can not regular event, likely unsafe state of affairs can occur.
For the combination with copper swage stabilizer; because copper swage stabilizer self adopts the simple structure on the iron core that the conductivity coil winding is passed through to magnetism; so likely because of according to external surge voltage, accumulate energy on inductor be applied to load-side produce superfluous burden or use more than 10 years cause through the time deteriorated; cause insulating properties to worsen, it is overheated to occur.By with light emitting diode combined, just in case light-emitting diode sudden short circuit fault, the electric current supply surplus likely flows through excessive electric current on copper swage stabilizer.Think that the combination of the copper swage stabilizer of this simple structure and long-term durability luminous diode is improper.
Summary of the invention
The invention provides a kind of ignition device and ligthing paraphernalia, make the user of ligthing paraphernalia to select arbitrarily fluorescent lamp and take the dc point lamp source that light-emitting diode is representative, and can more safely use.
The ignition device of first method of the present invention, in order to solve above-mentioned problem, as shown in Figure 1 and Figure 2, comprising: the series circuit of the 1st and the 2nd switch element Q1, Q2 is connected between the output of DC power supply circuit 1, the 1st control unit 11, output is for making periodically the hocket driving signal of on/off of the 1st and the 2nd switch element Q1, Q2, resonant circuit (resonant structure 4 and preheating part 3), be connected in parallel with any one party of the 1st and the 2nd switch element Q1, Q2, and the filament of discharge lamp La is carried out to preheating, produces the high voltage for discharge at starting lamp La, supplies with the High frequency power while lighting a lamp, splicing ear (terminal a, the b of connector CON1, terminal c, the d of connector CON2), be electrically connected to discharge lamp La on described resonant circuit, voltage conversion circuit (DC/DC transformation component 5), be connected between the output of described DC power supply circuit 1, comprises that the 3rd switch element Q3 forms, and will drop to required voltage from the output voltage of described DC power supply circuit 1 output, and the 2nd control unit 12, for output, the 3rd switch element Q3 of described voltage conversion circuit is carried out the driving signal of on/off, described resonant circuit comprises having for supply with the secondary coil n2 of preheat curent to described filament, the inductor of n3 (preheating transformer T1 or Fig. 6, Fig. 7, the inductor L1 of Figure 10) form, possesses the secondary coil n2 to described inductor, the rectifier DB that the voltage of the output of at least one of n3 (secondary coil n2) carries out rectification, the outgoing route of described voltage conversion circuit (DC/DC transformation component 5) and the outgoing route of described rectifier DB are connected in parallel.
The ignition device of the 2nd mode of the present invention, in order to solve above-mentioned problem, as shown in Figure 1 and Figure 2, comprising: the series circuit of the 1st and the 2nd switch element Q1, Q2 is connected between the output of DC power supply circuit 1; The 1st control unit 11, output is for making periodically the hocket driving signal of on/off of the 1st and the 2nd switch element Q1, Q2; Resonant circuit (resonant structure 4 and preheating part 30a), be connected in parallel with any one party of the 1st and the 2nd switch element Q1, Q2, and the filament of discharge lamp La is carried out to preheating, produces the high voltage for discharge at starting lamp La, supplies with the High frequency power while lighting a lamp; Splicing ear (terminal a, the b of connector CON1, terminal c, the d of connector CON2), be electrically connected to discharge lamp La on described resonant circuit; Voltage conversion circuit (DC/DC transformation component 50), be connected between the output of described DC power supply circuit 1, comprises that the 3rd switch element Q30 forms, and will drop to required voltage from the output voltage of described DC power supply circuit 1 output; The 2nd control unit 12, output, for the 3rd switch element Q30 of described voltage conversion circuit being carried out to the driving signal of on/off, is supplied with the output of described voltage conversion circuit to the low-pressure side (the terminal d of connector CON2) of described splicing ear.
According to described structure, drive the 1st and the 2nd switch element by the 1st control unit, thereby can make discharge lamp carry out high-frequency lighting, and by the 3rd switch element of the 2nd control unit driving voltage translation circuit, light a lamp thereby can make the light source such as LED carry out direct current.
And, have: load judgment unit (the load judgment section 15 that comprises resistance R 1～R3 of Figure 10), judge the upper load (discharge lamp La or LED module 7) connected of described splicing ear (terminal a, the b of connector CON1, terminal c, the d of connector CON2); And switch unit 13, according to the judged result of described load judgment unit, switch the operate condition of described the 1st control unit 11 or the 2nd control unit 12.
According to said structure, select the action of the 1st control unit and the 2nd control unit by the load judgment unit, thereby can be optionally discharge lamp or LED etc. be carried out to the light source that direct current lights a lamp, lit a lamp.
The ligthing paraphernalia of the 3rd mode of the present invention comprises: the ignition device of described the 1st mode or the 2nd mode; The receptacle portion that described discharge lamp La can be connected; And light source module 7 (Fig. 3, Fig. 4, Fig. 5), there is the discharge lamp La that can be connected with described receptacle portion or carry out the electric light source that direct current is lit a lamp.
According to said structure, a kind of ligthing paraphernalia can be provided, any one that makes fluorescent lamp etc. carry out that the discharge lamp of high-frequency lighting or LED etc. carry out light source that direct current lights a lamp lit a lamp.
The accompanying drawing explanation
Fig. 1 is the circuit diagram while on the ignition device of embodiments of the present invention 1, having connected discharge lamp.
Fig. 2 is the circuit diagram while on the ignition device of embodiments of the present invention 1, having connected LED module.
Fig. 3 means the front view of outward appearance of the ignition device of embodiments of the present invention 1.
Fig. 4 means the stereogram of outward appearance of the ligthing paraphernalia of the ignition device that has carried embodiments of the present invention 1.
Fig. 5 is the stereogram that can be connected to the illuminating part perspective representation of the LED module on embodiments of the present invention 1.
Fig. 6 is the circuit diagram while on the ignition device of embodiments of the present invention 2, having connected discharge lamp.
Fig. 7 is the circuit diagram while on the ignition device of embodiments of the present invention 3, having connected discharge lamp.
Fig. 8 is the movement oscillogram of the discharge lamp of embodiments of the present invention 3 while connecting.
Fig. 9 is the movement oscillogram of the LED module of embodiments of the present invention 3 while connecting.
Figure 10 is the circuit diagram while on the ignition device of embodiments of the present invention 4, having connected discharge lamp.
Figure 11 is the circuit diagram of the LED module that uses in the ignition device of embodiments of the present invention 4.
Figure 12 is the performance plot of the LED module that uses in the ignition device of embodiments of the present invention 4.
Figure 13 is the circuit diagram while on the ignition device of embodiments of the present invention 5, having connected discharge lamp.
Figure 14 is the circuit diagram while on the ignition device of embodiments of the present invention 5, having connected LED module.
Figure 15 is the circuit diagram while on the ignition device of embodiments of the present invention 6, having connected discharge lamp.
Figure 16 is the circuit diagram while on the ignition device of embodiments of the present invention 7, having connected discharge lamp.
Figure 17 is the circuit diagram while on the ignition device of embodiments of the present invention 8, having connected discharge lamp.
Figure 18 is the action specification figure of the discharge lamp of embodiments of the present invention 7 while connecting.
Figure 19 is the action specification figure of the LED module of embodiments of the present invention 7 while connecting.
Description of reference numerals
1 DC power supply section; 2 high frequency conversion sections; 3,30a preheating part; 4 resonant structures; 5,50DC/DC transformation component; The 7LED module; 11 inversion drive divisions (the 1st control unit); 12DC/DC converts drive division (the 2nd control unit); 13 action switching parts; T1, the T10 preheating transformer; N2, the n20 secondary coil; The La discharge lamp; Q1～Q3, the Q30 switch element; CON1, the CON2 connector
Embodiment
(execution mode 1)
Fig. 1, Fig. 2 are the circuit diagrams of embodiments of the present invention 1.Fig. 1 has meaned to connect the situation of discharge lamp, and Fig. 2 has meaned to connect the situation of LED module.
DC power supply section 1 for example exports by full-wave rectifier with Noboru presses chopper circuit to carry out the level and smooth direct voltage of rectification to commercial ac power source.High frequency conversion section 2 forms like this, connects the circuit that switch element Q1, the Q2 such as MOSFET are connected in series between the output of DC power supply section 1.Switch element Q1, Q2 drive by inversion drive division 11 on/off that hockets.
After DC power supply section 1 has started to supply with predetermined direct voltage, in controlling power supply unit 6, generate and control power source voltage Vcc, control power source voltage Vcc to inversion drive division 11 and 12 supplies of DC/DC conversion drive division.Inversion drive division 11 and DC/DC conversion drive division 12 are accepted, from the Action Selection signal of action switching part 13 outputs, to determine each operate condition.The detailed action of this action switching part 13 will be narrated in the back.
And, be connected in parallel to discharge lamp La on the resonance electricity consumption container C 1 of resonant structure 4, supply with preheat curent for the filament from preheating part 3 to discharge lamp La, be provided with connector CON1, the CON2 that can be electrically connected to the outside of ignition device.
Be connected with discharge lamp La on connector CON1, CON2, acceptance is from the Action Selection signal of action switching part 13 outputs, and inversion drive division 11 starts action, as is well known, drive the frequency of signal by change, each that carry out preheating in advance, starts, lights a lamp controlled.
It is to be charged to voltage in capacitor C6 as power supply that the driving signal of switch element Q1 generates.Replace by switch element Q1 and Q2 the high frequency that on/off produces, on secondary coil n2, the n3 of preheating transformer T1, produce High frequency power.At this, on the output of the secondary coil n2 of preheating part 3, be connected with rectifier DB.The High frequency power produced on the secondary coil n2 of preheating transformer T1 is direct current by full-wave rectifier DB rectification, is connected to the filament of the discharge lamp La on connector CON2 (splicing ear c, d) by the direct current power preheating.
On the other hand, be connected with DC/DC transformation component 5 on the output of DC power supply section 1, formed by switch element Q3, diode D1, D2, inductor L2, capacitor C4.The structure of this DC/DC transformation component 5 is identical with the buck chopper device circuit usually, detailed.The output that switch element Q3 converts drive division 12 by DC/DC is driven.DC/DC conversion drive division 12 is integrated circuit similarly, from its lead-out terminal, be that the Hout terminal is to switch element Q3 output drive signal, by the wide value of wishing that the is set as turn-on time by switch element Q3, can be controlled at the upper direct voltage produced of capacitor C4 of output.
In the situation of the structure of employing Fig. 1, owing to being connected with discharge lamp La on connector CON1, CON2, so, according to the Action Selection signal from action switching part 13 to 12 outputs of DC/DC conversion drive division, DC/DC transformation component 5 stops.
Although the output of DC/DC transformation component 5 is connected with the output of rectifier DB via diode D2, but because DC/DC transformation component 5 stops, so the voltage produced on capacitor C4, be that the anode-side current potential of diode D2 is 0[V], the output of rectifier DB on the output of secondary coil n2 by being connected to preheating part 3, carry out preheating to the filament of the terminal c-d side of discharge lamp La.
Then, Fig. 2 is illustrated on connector CON2 the situation that has connected the LED module 7 consisted of a plurality of LED.As shown in the drawing, the cathode side of LED module 7 is connected on the splicing ear c of connector CON2, and anode-side is connected on the splicing ear d of connector CON2.
In this case, because inversion drive division 11 stops according to the Action Selection signal from 13 outputs of action switching part, and DC/DC conversion drive division 12 starts action, thus from the output (capacitor C4) of DC/DC transformation component 5 via diode D2, supply with direct current powers to LED module 7.At this, because inversion drive division 11 stops, the voltage of the secondary coil n2 of preheating part 3 is 0[V], so supply with suitable direct current power from the output of DC/DC transformation component 5.
Ignition device of the present invention forms like this, and the electronic unit shown in Fig. 1 is installed at least one printed base plate, and this installation base plate is accommodated in the housing 20 shown in Fig. 3.And above-mentioned connector CON1, CON2 is configured to be connected with discharge lamp La or LED module 7 in the outside of ignition device.CON3 is the connector of mains side, connects for commercial ac power source being supplied to the distribution of DC power supply section 1.Housing 20 possesses fixing with screw hole 21 at two ends.
As shown in Figure 4, the ignition device covered by this housing outer surface is built in the appliance body 31 of ligthing paraphernalia 30.Connector CON1, the CON2 of ignition device is connected to respectively on receptacle portion 32, can connect and insert the intercalation part of discharge lamp La in this receptacle portion 32.
In addition, as long as the detailed action of action switching part 13 can realize above-mentioned action, be not particularly limited.For example can adopt following structure, form action switching part 13 by microcomputer, although not shown, input is selected signal by setting with the light source of the generations such as switch, select signal according to this light source, the binary signal of " H ", " L " is exported to inversion drive division 11 and DC/DC conversion drive division 12, and inversion drive division 11 and DC/DC conversion drive division 12 are moved when " H " signal is inputted, and when " L " signal is inputted, stop.
Preheating part 3 is not limited to the structure that preheating transformer T1 and capacitor C3 are connected in series, for example can adopt following structure, with preheating transformer, T1 is connected in series switch element, connects this switch element when at least formerly going preheating and the mode that disconnects when lighting a lamp is controlled.
As mentioned above, by using the ignition device of present embodiment, can not increase the terminal for connecting of the required ignition device of use for discharge lamp ligthing paraphernalia and the quantity of socket, can freely select discharge lamp and LED module, can assemble at low cost ligthing paraphernalia with the manufacturing equipment of use for discharge lamp ligthing paraphernalia.
In addition, the terminal a of the LED module 7 shown in present embodiment, b side and c, d side electric insulation, even be installed on ligthing paraphernalia in the past, can not cause unsafe phenomenon yet.
(execution mode 2)
Fig. 6 is the circuit diagram of embodiments of the present invention 2.Structure when having connected discharge lamp La this illustrate.In execution mode 1, by rectifier DB, the High frequency power rectification that will produce on the secondary coil n2 of preheating transformer T1 is direct current, filament to discharge lamp La carries out preheating, and in the present embodiment, at the resonance of resonant structure 4 with secondary coil n2 is set on inductor L1, similarly by rectifier DB, be direct current by the upper High frequency power rectification produced of this secondary coil n2, the filament of discharge lamp La is carried out to preheating.And, as shown in the drawing, in order to prevent waiting and cause secondary coil n2, n3 short circuit because the filament of discharge lamp La is abnormal, can between secondary coil n2, n3 and filament, connect capacitor.
Identical with execution mode 1, the structure of DC/DC transformation component 5 also adopts buck chopper device structure, and the output of DC/DC transformation component 5 is connected with the output (terminal d side) of above-mentioned rectifier DB via diode D2.
In this example, because preheating part is simplified, so can cut down number of components, can form ignition device with low cost.
(execution mode 3)
Fig. 7 is the circuit diagram of embodiments of the present invention 3.Structure when having connected discharge lamp La this illustrate.In the present embodiment, the filament pre-heating of discharge lamp La adopts the mode identical with execution mode 2, by resonance, uses on inductor L1 and secondary coil n2 is set supplies with pre-thermopower.And resonance electricity consumption container C 1 forms like this: the filament across discharge lamp La is connected between splicing ear b-d, when having unloaded discharge lamp La, can not supply with electric current to resonant structure 4.
The basic structure of DC/DC transformation component 5 is identical with execution mode 1,2, employing is with the buck chopper device structure of the formations such as switch element, but by the switch element that will form DC/DC transformation component 5 and publicization of switch element Q1 that forms high frequency conversion section 2, thereby reduce number of components.The output of DC/DC transformation component 5 is connected with the output (terminal d side) of described rectifier DB via switch element Q4.
The sequential chart of Fig. 8, Fig. 9 means action switching part 13 in present embodiment and the detailed action of drive control part 14.Action when Fig. 8 has meaned to connect discharge lamp La.If connect discharge lamp La,, as shown in this figure (a), the threshold value Vref2 that the voltage ratio of the Action Selection signal from load judgment section (referring to Figure 10) to 13 outputs of action switching part predetermines is low.Now, from drive control part 14 to switch element Q1, Q2, driving signal Hout, the Lout of output are as shown in this figure (b), (c), be to drive signal at the signal that rises, has while descending the cycle T o of t1 between stand-down, the switching current that flow into switch element Q1, Q2 becomes the stagnant phase waveform shown in this figure (d), (e) by resonance effect.For discharge lamp La is carried out to preheating in advance, the control of starting, light a lamp, also drive control part 14 can be configured to and carry out as follows FREQUENCY CONTROL, that is, the cycle T o of this driving signal Hout, Lout is made as and can changes, and between stand-down, t1 has steady state value.
And, from action switching part 13 to the roughly 0[V of the output of the switch element Q4 the output that is connected to DC/DC transformation component 5 as this figure (f) as shown in] signal, switch element Q4 disconnection.Carry out on/off by switch element Q1, thereby at the upper voltage that produces of the output (capacitor C4) of DC/DC transformation component 5, but because switch element Q4 disconnects, so can not supply with direct current power to the splicing ear d of connector CON2, direct current power by from rectifier DB output, carry out preheating to the filament that is connected to the discharge lamp La between terminal c-d.
Then, Fig. 9 illustrates the action while having connected LED module 7.As shown in this figure (a), the threshold value Vref1 that the voltage ratio of the Action Selection signal in this situation predetermines is low, higher than threshold value Vref2.
Now, from drive control part 14 to switch element Q1, Q2, driving signal Hout, the Lout of output, as shown in this figure (b), (c), drive signal Lout to keep 0[V], drive signal Hout repeatedly to carry out on/off with cycle T 2.Thus, flow into the switching current of switch element Q1, Q2 as shown in this figure (d), (e), when switch element Q1 connects, for to inductor L2 energy accumulation, the current waveform of indentation ripple, when switch element Q1 disconnects, inductor L2 releases energy, diode via with switch element Q2 anti-parallel connection parasitism, flow out this release current.That is, switch element Q1 plays a role as the switch element of buck chopper device circuit, and the anti-parallel connection diode of switch element Q2 plays a role as the diode of the regenerative current energising use of buck chopper device circuit.Control for the buck chopper device of realizing adjusting capacitor C4 voltage, form drive control part 14 as long as following: carry out by during the connection of switch element Q1 or at least one party of on/off cycle T 2 be made as variable periodic Control.
In addition, due to as shown in this figure (f), switch element Q4 output " H " signal now from from action switching part 13 to the output that is connected to DC/DC transformation component 5, so switch element Q4 connects, the direct current power produced on the output of DC/DC transformation component 5 is fed into the terminal d of connector CON2.As long as drive control part 14 can be selected the control of any one party of FREQUENCY CONTROL and periodic Control as mentioned above according to the Action Selection signal, be not particularly limited.
And, in the situation that connected LED module 7, drive signal Lout to keep 0[V], but in order to ensure the power supply of the driving signal for generating switch element Q1, be that the charging voltage of capacitor C6 is stable, can be configured to driving signal Hout during " L ", will drive signal Lout to be made as " H ".
And, further concrete example as periodic Control, owing to passing through the source voltage of sense switch element Q1, perhaps, on inductor L2, secondary coil is set, detects this secondary coil voltage, thereby can judge that when inductor L2 releases energy electric current is for 0[A roughly], so can on drive control part 14, control unit be set, this control unit is 0[A at the electric current of judging inductor L2] the moment, switch element Q1 is connected.
In the present embodiment, switch element sharing due to the switch element that will form DC/DC transformation component 5 and formation high frequency conversion section 2, further also will be to the control circuit sharing of these switch element output drive signals, so pass through drive control part 14 integrated circuits, thereby can significantly cut down number of components.
(execution mode 4)
Figure 10 is the circuit diagram of embodiments of the present invention 4.At this, the structure while having connected discharge lamp La is shown.The structure of execution mode 4 and execution mode 2 are roughly the same, difference is to have added load judgment section 15, it is the LED module 7 shown in discharge lamp La or Figure 11 that the load be connected on connector CON2 detects in this load judgment section 15, according to the judgement signal from 15 outputs of load judgment section, by action switching part 13, determine operate condition.
The voltage-current characteristic of the LED module 7 shown in Figure 11 (A) as shown in figure 12, identical with common diode, has predetermined threshold value Vth.For example, as shown in the drawing, load judgment section 15 adopts the structure that a plurality of resistance R 1, R2, R3 are connected in series, and the voltage that will produce on the tie point of resistance R 1 and R2 is set the voltage higher than the threshold voltage vt h of above-mentioned LED module 7 for.
In the situation that LED module 7 is connected between the splicing ear d-c of connector CON2, flow through Weak current in LED module 7, the judgement signal (referring to Fig. 9 (a)) that the equivalent impedance of the LED module 7 while generating thus and resistance R 1, R2, R3 determine on the tie point of resistance R 2 and R3.
In the situation that connected discharge lamp La, connect the filament of discharge lamp La between the splicing ear d-c of connector CON2.The equivalent impedance of the filament of discharge lamp La is 10[Ω] left and right, so the voltage produced on the tie point of resistance R 1 and R2 is substantially equal to 0[V], the judgement signal generated at the tie point of resistance R 2 and R3 also is roughly 0[V] (referring to Fig. 8 (a)).
In the situation that discharge lamp La all is not connected with LED module 7, the judgement signal is the voltage that determined by resistance R 1, R2, R3 (than the Vref1 of Fig. 8, Fig. 9 high voltage).
Carry out load judgment by adopting above-mentioned gimmick, as implement in mode 2 illustrated, the action that can be when connecting discharge lamp or be scheduled to while connecting LED module, further, in the situation that discharge lamp all is not connected with LED module, can make ignition device stop moving.Thus, even after ligthing paraphernalia having been carried out to construction, the user still can freely select discharge lamp or LED module to use.
Because there is deviation in the voltage-current characteristic of LED chip, and LED module 7 has a plurality of LED chips, so in the situation that flow through Weak current, what have is luminous, what have is not luminous, as shown in Figure 11 (B), as long as with the series circuit of the LED chip high resistance that is connected in parallel, can in the situation that do not consider luminous deviation, carry out load judgment.
In addition, in the present embodiment, circuit structure adopts and the essentially identical structure of execution mode 2, even but the circuit structure of employing execution mode 1 or 3 also can be realized identical effect.
(execution mode 5)
Figure 13, Figure 14 are the circuit diagrams of embodiments of the present invention 5.Figure 13 has meaned to connect the situation of discharge lamp, and Figure 14 has meaned to connect the situation of LED module.
Present embodiment has the structure identical with execution mode 1.Below, the structure different from execution mode 1 described, give identical parts number to identical structure, and description thereof is omitted.
In above-mentioned execution mode 1, the preheating of preheating part 3 has secondary coil n2, n3 with transformer T1, its primary coil is connected with capacitor C3, connect rectifier DB on a secondary coil n2, this preheating part 3 is in parallel with resonant structure 4, yet the preheating part 30a of execution mode 5 consists of with transformer T10 with the capacitor C30 that its primary coil is connected in series the preheating with secondary coil n20, this preheating part 30a and resonant structure 4 are connected in parallel.
Adopt in the situation of this structure, the driving signal of switch element Q1 generate be the voltage be charged in capacitor C6 be power supply.The high frequency produced by the on/off that hocketed by switch element Q1 and Q2 produces High frequency power on the secondary coil n20 of preheating transformer T10.By this structure, be connected to the filament of the discharge lamp La between the terminal a-b of connector CON1 by the High frequency power preheating.
On the other hand, DC/DC transformation component 50 consists of switch element Q30, diode D10, inductor L20, capacitor C40, with the output of DC power supply section 1, is connected.By such formation, be connected to the filament of the discharge lamp La between the terminal c-d of connector CON2 by the direct current power preheating.
In the situation of the structure of employing Figure 13, owing to being connected with discharge lamp La on connector CON1, CON2, so according to the Action Selection signal from action switching part 13 to 12 outputs of DC/DC conversion drive division, 50 actions of DC/DC transformation component.
Now, DC/DC transformation component 50 is controlled to, and at least at discharge lamp La, moved during preheating in advance, and stopped when discharge lamp La lights a lamp, thus can minimization waste.
Then, Figure 14 is illustrated on connector CON2 the situation that has connected the LED module 7 consisted of a plurality of LED.As shown in the drawing, the cathode side of LED module 7 is connected with the splicing ear c of connector CON2, and anode-side is connected with the splicing ear d of connector CON2.
In this case, because inversion drive division 11 stops according to the Action Selection signal from 13 outputs of action switching part, and DC/DC conversion drive division 12 starts action, so supply with suitable direct current power from the output (capacitor C40) of DC/DC transformation component 50 to LED module 7.Now, inversion drive division 11 stops according to the Action Selection signal from 13 outputs of action switching part, thereby can minimization waste.
In addition, as long as the detailed action of the action switching part 13 on above-mentioned execution mode 5 can realize above-mentioned action, be not particularly limited.For example, also can adopt following structure, form action switching part 13 by microcomputer, although not shown, input is selected signal by setting with the light source of the generations such as switch, according to this light source, selects signal, the binary signal of " H ", " L " is exported to inversion drive division 11 and DC/DC conversion drive division 12, perhaps, setting can judge the load judgment unit of discharge lamp La and LED module 7, thereby determines the operate condition of inversion drive division 11 and DC/DC conversion drive division 12.
And as long as inversion drive division 11 is following formation: move when input " H " signal, stop when input " L " signal.And as long as DC/DC conversion drive division 12 is following formation: move in mode from pre-thermopower to discharge lamp La that supply with when input " H " signal, move in mode from suitable direct current power to LED module 7 that supply with when input " L " signal.
And, preheating part 30a also is not limited to the structure that preheating transformer T10 and capacitor C30 are connected in series, and for example, on preheating transformer T10, is connected in series switch element, controlled as follows: at least at discharge lamp La, connect this switch element during preheating in advance, disconnect when discharge lamp La lights a lamp.
As mentioned above, by using the ignition device of present embodiment, without the terminal for connecting that increases the required ignition device of use for discharge lamp ligthing paraphernalia and the quantity of socket, still can freely select discharge lamp and LED module, use the manufacturing equipment of use for discharge lamp ligthing paraphernalia, with low cost assembling ligthing paraphernalia.
In addition, the terminal a of the LED module 7 shown in present embodiment, b side and c, d side electric insulation, even be installed on ligthing paraphernalia in the past, can not cause unsafe phenomenon yet.
(execution mode 6)
Figure 15 is the circuit diagram of embodiments of the present invention 6.Structure when having connected discharge lamp La this illustrate.In execution mode 5, by the High frequency power that produces on the secondary coil n20 at preheating transformer T1, the filament of discharge lamp La is carried out to preheating, yet in the present embodiment, at the resonance of resonant structure 4 with secondary coil n20 is set on inductor L1, by the High frequency power produced, similarly the filament of discharge lamp La carried out to preheating on this secondary coil n20.And, as shown in the drawing, in order to prevent waiting and cause secondary coil n20 short circuit because the filament of discharge lamp La is abnormal, can adopt the structure that connects capacitor between secondary coil n20 and filament.
The structure of DC/DC transformation component 50 is also identical with execution mode 5, adopts buck chopper device structure, connects the filament (terminal d side) of discharge lamp La from the output of DC/DC transformation component 50.
In this example, owing to having simplified preheating part, so, by reducing number of components, can form ignition device with low cost.
(execution mode 7)
Figure 16 is the circuit diagram of embodiments of the present invention 7.Structure when this expression has connected discharge lamp La.In the present embodiment, the filament pre-heating of discharge lamp La is different from execution mode 5,6, by the preheat curent path via resonance electricity consumption container C 1 is set, supplies with pre-thermopower.And resonance electricity consumption container C 1 filament via discharge lamp La is connected between splicing ear b-d, in the situation that unloaded discharge lamp La, can not supply with electric current to resonant structure 4.
The basic structure of DC/DC transformation component 50 is identical with execution mode 5,6, the buck chopper device structure that employing consists of switch element etc., yet, by the switch element that will form DC/DC transformation component 50 and the switch element Q1 sharing that forms high frequency conversion section 2, thereby reduce number of components.The output of DC/DC transformation component 50 is connected with discharge lamp La across switch element Q40.
Action shown in the sequential chart of action switching part 13 in above-mentioned execution mode 7 and the detailed action of drive control part 14 and above-mentioned Fig. 8 (a)～(e) and Fig. 9 (a)～(e) is identical.
Figure 18 illustrate while having connected discharge lamp La, action when preheating/originate mode and the pattern of lighting a lamp are switched changes.In the situation that connected discharge lamp La, when preheating in advance, during starting, because switch element Q40 connects, so by direct current power, the filament that is connected to the discharge lamp La between terminal c-d is carried out to preheating.When lighting a lamp, because switch element Q40 disconnects, so can between terminal c-d, not produce superfluous preheating.By control action switching part 13 by this way, can minimization waste.
(execution mode 8)
Figure 17 is the circuit diagram of embodiments of the present invention 8.Structure when having connected discharge lamp La this illustrate.The structure of execution mode 8 and execution mode 6 are roughly the same, difference is to have added load judgment section 15, it is the LED module 7 shown in discharge lamp La or Figure 11 that the load be connected on connector CON2 detects in this load judgment section 15, according to the judgement signal from 15 outputs of load judgment section, by action switching part 13, determine operate condition.
In addition, in the present embodiment, circuit structure and execution mode 6 are roughly the same, yet, even adopt the circuit structure of execution mode 5 or 7, also can realize identical effect.
And, in execution mode 1～8, as the light source that carries out direct current and light a lamp, the light-emitting diode of take is illustrated as representative, but also can adopt organic EL.
Claims (6)
1. an ignition device is characterized in that having:
The 1st and the series circuit of the 2nd switch element, be connected between the output of DC power supply circuit;
The 1st control unit, output is for making periodically the hocket driving signal of on/off of the 1st and the 2nd switch element;
Resonant circuit, with the 1st and any one party of the 2nd switch element be connected in parallel, the filament of discharge lamp is carried out to preheating, produce the high voltage for the discharge at starting lamp, supply with the High frequency power while lighting a lamp; And
Splicing ear, be electrically connected to discharge lamp on described resonant circuit,
Described ignition device possesses:
Voltage conversion circuit, be connected between the output of described DC power supply circuit, comprises the 3rd switch element, will drop to required voltage from the output voltage of described DC power supply circuit output; And
The 2nd control unit, the driving signal of on/off is carried out in output for the 3rd switch element that makes described voltage conversion circuit,
Described resonant circuit comprises inductor, this inductor has for supply with the secondary coil of preheat curent to described filament, described resonant circuit possesses the rectifier that the voltage of at least one output of the secondary coil of described inductor is carried out to rectification, and the outgoing route of the outgoing route of described voltage conversion circuit and described rectifier is connected in parallel.
2. ignition device according to claim 1, is characterized in that, has:
The load judgment unit, judged the load be connected on described splicing ear; And
Switch unit, according to the judged result of described load judgment unit, switch the operate condition of described the 1st control unit or the 2nd control unit.
3. a ligthing paraphernalia is characterized in that possessing:
The described ignition device of claim 1 or 2;
The receptacle portion that described discharge lamp can be connected; And
Light source module, have the discharge lamp that can be connected with described receptacle portion or carry out the electric light source that direct current is lit a lamp.
4. an ignition device is characterized in that possessing:
The 1st and the series circuit of the 2nd switch element, be connected between the output of DC power supply circuit;
The 1st control unit, output is for making periodically the hocket driving signal of on/off of the 1st and the 2nd switch element;
Resonant circuit, with the 1st and any one party of the 2nd switch element be connected in parallel, the filament of discharge lamp is carried out to preheating, produce the high voltage for the discharge at starting lamp, supply with the High frequency power while lighting a lamp; And
Splicing ear, be electrically connected to discharge lamp on described resonant circuit,
Described ignition device possesses:
Voltage conversion circuit, be connected between the output of described DC power supply circuit, comprises the 3rd switch element, will drop to required voltage from the output voltage of described DC power supply circuit output; And
The 2nd control unit, the driving signal of on/off is carried out in output for the 3rd switch element that makes described voltage conversion circuit,
Supply with the output of described voltage conversion circuit to the low-pressure side of described splicing ear.
5. ignition device according to claim 4, is characterized in that, has:
The load judgment unit, judged the load be connected on described splicing ear; And
Switch unit, according to the judged result of described load judgment unit, at least switch the operate condition of the 2nd control unit.
6. a ligthing paraphernalia is characterized in that having:
The described ignition device of claim 4 or 5;
The receptacle portion that described discharge lamp can be connected; And
Light source module, have the discharge lamp that can be connected with described receptacle portion or carry out the electric light source that direct current is lit a lamp.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010036105A JP5457875B2 (en) | 2010-02-22 | 2010-02-22 | Lighting device and lighting fixture using the same |
| JP2010036104A JP2011171240A (en) | 2010-02-22 | 2010-02-22 | Lighting device, and lighting fixture using it |
| JP036105/2010 | 2010-02-22 | ||
| JP036104/2010 | 2010-02-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102164440A CN102164440A (en) | 2011-08-24 |
| CN102164440B true CN102164440B (en) | 2013-12-25 |
Family
ID=44148754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100440775A Expired - Fee Related CN102164440B (en) | 2010-02-22 | 2011-02-21 | Lighting device and illumination fixture using thereof |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP2362717A3 (en) |
| CN (1) | CN102164440B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6011761B2 (en) * | 2011-12-19 | 2016-10-19 | パナソニックＩｐマネジメント株式会社 | Lighting device and lighting fixture using the same |
| CN103547050B (en) * | 2012-07-16 | 2015-11-25 | 台达电子工业股份有限公司 | Lighting system and ignition method |
| WO2014085951A1 (en) * | 2012-12-03 | 2014-06-12 | General Electric Company | Ballast with programmable filament preheating |
| DE102013104808A1 (en) * | 2013-05-08 | 2014-11-13 | Atoswiss Ag | lighting device |
| JP6164410B2 (en) * | 2013-07-12 | 2017-07-19 | 東芝ライテック株式会社 | Lighting device and lighting device |
| SG11201701295SA (en) * | 2014-08-18 | 2017-03-30 | Univ Singapore | Single-stage multi-string led driver with dimming |
| JP6779879B2 (en) * | 2015-07-30 | 2020-11-04 | 株式会社小糸製作所 | Lighting circuit, vehicle lighting equipment |
| CN107589303A (en) * | 2016-07-07 | 2018-01-16 | 台达电子工业股份有限公司 | Power supply change-over device and earth impedance value detection method |
| US10939515B2 (en) * | 2017-08-22 | 2021-03-02 | Photoscience Japan Corporation | Discharge lamp and discharge lamp apparatus |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101568220A (en) * | 2008-04-22 | 2009-10-28 | 天网电子股份有限公司 | Ballast circuit of fluorescent tube |
| CN101584253A (en) * | 2007-02-19 | 2009-11-18 | 松下电工株式会社 | Discharge lamp operation device, illumination device, and liquid crystal display device |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002500819A (en) * | 1998-04-02 | 2002-01-08 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Circuit device |
| JP2003264090A (en) * | 2002-03-08 | 2003-09-19 | Matsushita Electric Works Ltd | Illuminating device |
| US7282867B2 (en) * | 2004-03-01 | 2007-10-16 | Harison Toshiba Lighting Corporation | Lighting device for discharge lamp |
| US7375476B2 (en) * | 2005-04-08 | 2008-05-20 | S.C. Johnson & Son, Inc. | Lighting device having a circuit including a plurality of light emitting diodes, and methods of controlling and calibrating lighting devices |
| DE102005030114A1 (en) * | 2005-06-28 | 2007-01-18 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Circuit arrangement for operating electrical lamp e.g. fluorescent lamp, and light emitting diode, has lamps-supply unit with light emitting diode-supply unit, which is designed to supply light emitting diode with energy |
| DE102005030115A1 (en) * | 2005-06-28 | 2007-01-18 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Circuit arrangement and method for operating at least one LED and at least one electric lamp |
| JP4742720B2 (en) * | 2005-07-22 | 2011-08-10 | パナソニック電工株式会社 | Discharge lamp lighting device and lighting fixture including the same |
| US7701153B2 (en) * | 2006-12-15 | 2010-04-20 | Panasonic Corporation | Visible indication of mistaken lamp use |
| JP5032933B2 (en) * | 2007-09-27 | 2012-09-26 | 日立アプライアンス株式会社 | LED lighting device |
| JP2009272088A (en) * | 2008-05-02 | 2009-11-19 | Rohm Co Ltd | Led lamp mountable on fluorescent luminaire for general use |
-
2011
- 2011-02-09 EP EP11153892.2A patent/EP2362717A3/en not_active Withdrawn
- 2011-02-21 CN CN2011100440775A patent/CN102164440B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101584253A (en) * | 2007-02-19 | 2009-11-18 | 松下电工株式会社 | Discharge lamp operation device, illumination device, and liquid crystal display device |
| CN101568220A (en) * | 2008-04-22 | 2009-10-28 | 天网电子股份有限公司 | Ballast circuit of fluorescent tube |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2362717A3 (en) | 2017-01-11 |
| CN102164440A (en) | 2011-08-24 |
| EP2362717A2 (en) | 2011-08-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102164440B (en) | Lighting device and illumination fixture using thereof | |
| RU2563042C2 (en) | Light diode circuit layout | |
| CN103688594B (en) | Driver circuit for powering dc lamp in non-dc lamp fitting | |
| CN101988649B (en) | LED lighting device | |
| EP2745626B1 (en) | Circuit arrangement for operating a low-power lighting unit and method of operating the same | |
| JP5264765B2 (en) | Cell for supplying power to electric load of light source, circuit configuration thereof, and design method thereof | |
| CN103190002B (en) | LED lighting circuit, LED light device and LED illumination portion socket | |
| CN102036441B (en) | Driving device for lighting circuit and illumination device | |
| CN102231926B (en) | LED lighting device and illumination apparatus | |
| JP3795863B2 (en) | Single-stage PFC + ballast control circuit / general-purpose power converter | |
| JP2012038711A (en) | Led lamp and driver circuit for led lamp | |
| JP2005197231A (en) | Universal platform for phase dimming discharge lighting stabilizer and lamp | |
| EP1168893B1 (en) | Ballast for discharge lamp | |
| US20140159592A1 (en) | Led light tube compatible with light fixture having electronic ballast or magnetic ballast | |
| CN102638921B (en) | Lighting device for semiconductor light emitting elements and illumination apparatus including the same | |
| CN103026798A (en) | Dimmable LED lamp | |
| JP6072776B2 (en) | LED retrofit drive circuit and method for operating LED retrofit drive circuit | |
| CN103959915B (en) | For the starting circuit of step-down controller | |
| CN101621877A (en) | Current feed circuit and current control circuit of light emitting diode | |
| CN103477710A (en) | Interface circuit | |
| CN107950077B (en) | LED tubular lamp | |
| US8111015B2 (en) | Brightness-adjustable illumination driving system | |
| US20070194721A1 (en) | Electronic lighting ballast with multiple outputs to drive electric discharge lamps of different wattage | |
| CN110383949A (en) | Lighting apparatus, system and the method for controlling lighting apparatus | |
| Ng et al. | High frequency AC distributed power system for fluorescent lighting |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: MATSUSHITA ELECTRIC INDUSTRIAL CO, LTD. Free format text: FORMER OWNER: MATSUSHITA ELECTRIC WORKS LTD. Effective date: 20120229 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20120229 Address after: Osaka Japan Applicant after: Matsushita Electric Industrial Co.,Ltd. Address before: Osaka Japan Applicant before: Matsushita Electric Works, Ltd. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131225 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |