CN103237396B - A kind of high-frequency electronic direct-current ballast circuit and fluorescent lamp - Google Patents
A kind of high-frequency electronic direct-current ballast circuit and fluorescent lamp Download PDFInfo
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- CN103237396B CN103237396B CN201310136999.8A CN201310136999A CN103237396B CN 103237396 B CN103237396 B CN 103237396B CN 201310136999 A CN201310136999 A CN 201310136999A CN 103237396 B CN103237396 B CN 103237396B
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- resistance
- inductance coil
- electric capacity
- alternating current
- ballast
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- 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
- 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
- H05B41/282—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
- H05B41/2825—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 by means of a bridge converter in the final stage
-
- 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
- H05B41/282—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
- H05B41/285—Arrangements for protecting lamps or circuits against abnormal operating conditions
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
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- Rectifiers (AREA)
- Circuit Arrangements For Discharge Lamps (AREA)
Abstract
The invention belongs to circuit field, provide a kind of high-frequency electronic direct-current ballast circuit and fluorescent lamp.In embodiments of the present invention, by the second AC-DC conversion module, the high-frequency and high-voltage alternating current that ballast module exports is converted to high-frequency high-voltage direct-current electricity and provides operating voltage for load, change the way directly adopting alternating current ballast powering load in prior art, efficiently solve due to the direct powering load of high-frequency and high-voltage alternating current, make load produce black circle under alternating current effect, reduce the problem in load useful life.
Description
Technical field
The invention belongs to circuit field, particularly relate to a kind of high-frequency electronic direct-current ballast circuit and fluorescent lamp.
Background technology
The development of electric power facilitates the progress of society greatly, and the life of people more and more be unable to do without electricity, normal lighting, and operating illumination all needs electricity, and electricity is that the life of people brings great convenience.But, traditional lighting fluorescent fluorescent tube is all use under the condition of alternating current, the inductance type ballast mostly used in fluorescent lamp circuit, consume a large amount of metal materials, waste a large amount of electric energy simultaneously, and alternating current voltage becomes sinusoidal periodic to change, alternating current ballast produces larger impedance in fluorescent lamp, easily cause fluorescent tube two ends to produce black circle, affect brightness of illumination, reduce the useful life of fluorescent lamp.
Summary of the invention
The invention provides a kind of high-frequency electronic direct-current ballast circuit, be intended to solve alternating current ballast in prior art and, directly to load supplying, make load produce black circle under alternating current effect, reduce the problem in load useful life.
In order to solve the problems of the technologies described above, the invention provides a kind of high-frequency electronic direct-current ballast circuit, be connected with alternating current and load, described high-frequency electronic direct-current ballast circuit comprises the alternating current, EMI filtration module, the first AC-DC conversion module and the ballast module that connect successively, and described high-frequency electronic direct-current ballast circuit also comprises:
Second AC-DC conversion module, is connected with described ballast module and described load respectively, the high-frequency and high-voltage alternating current that described ballast module exports is converted to high-frequency high-voltage direct-current electricity for described load and provides operating voltage.
Further, described EMI filtration module comprises: resistance R1, filter capacitor C1, filter capacitor C2, inductance coil L1 and inductance coil L2;
The first end of described filter capacitor C1 is connected with the first end of inductance coil L1 and the first end of described alternating current respectively, second end of described inductance coil L1 is connected with the first end of described filter capacitor C2 and the first end of described resistance R1 respectively, the first end of described resistance R1 is the first output of described EMI filtration module, second end of described resistance R1 is connected with second end of described filter capacitor C2 and second end of described inductance coil L2 respectively, second end of described resistance R1 is the second output of described EMI filtration module, the first end of described inductance coil L2 respectively with the second end of described filter capacitor C1 and described alternating current.
Further, described first AC-DC conversion module is rectifier bridge BD1;
First of described EMI filtration module exports the first input end of rectifier bridge BD1 described in termination, and second of described EMI filtration module exports second input of rectifier bridge BD1 described in termination.
Further, described ballast module comprises: polar capacitor C3, electric capacity C4, electric capacity C5, electric capacity C6, electric capacity C7, resistance R3, resistance R4, resistance R5, resistance R6, diode D1, diode D2, diode D3, two end alternating current switch D4, NPN type triode Q1, NPN type triode Q2, inductance coil Ta, inductance coil Tb, inductance coil Tc and inductance L 3;
The positive pole of described polar capacitor C3 is as the input of described ballast module, connect the output of described rectifier bridge BD1, the positive pole of described polar capacitor C3 and the first end of described resistance R2 are connected to the first end of the negative electrode of described diode D1 and the collector electrode of described NPN type triode Q1 and described electric capacity C5 altogether, second end of described resistance R2 and the anode of described diode D3 are connected to the described first end of two end alternating current switch D4 and the first end of described electric capacity C4 altogether, the negative pole of described polar capacitor C3, second end of described electric capacity C4 and second end of described resistance R4 are connected to second end of described inductance coil Tc and the first end of described electric capacity C6 altogether, the negative pole of described polar capacitor C3 connects the earth terminal of described rectifier bridge BD1, the negative electrode of described diode D3 and the anode of described diode D1 are connected to second end of described resistance R3 and the collector electrode of described NPN type triode Q2 altogether, the base stage of described NPN type triode Q1 connects the first end of described resistance R5, the first end of inductance coil Ta described in second termination of described resistance R5, the first end of inductance coil Tb described in second termination of described inductance coil Ta, the first end of inductance L 3 described in second termination of described inductance coil Tb, the public connecting end of described inductance coil Ta and described inductance coil Tb connects second end of described resistance R3, the base stage of NPN type triode Q2 and the first end of described resistance R6 described in second termination of described two end alternating current switch D4, the emitter of described NPN type triode Q2 connects the first end of described resistance R4, the first end of inductance coil Tc described in second termination of described resistance R6, second end of described electric capacity C5 is connected with the first end of described electric capacity C7 and second end of described electric capacity C6 respectively, second end of electric capacity C7 described in second termination of described inductance L 3, the public connecting end of described inductance L 3 and described electric capacity C7 is the first output of described ballast module, the public connecting end of described electric capacity C5 and described electric capacity C6 is the second output of described ballast module.
Further, described second AC-DC conversion module is rectifier bridge BD2;
The first input end of described rectifier bridge BD2 connects the first output of described ballast module, and the second output of ballast module described in the second input termination of described rectifier bridge BD2, the output and ground of described rectifier bridge BD2 connects the two-stage of described load respectively.
Another object of the present invention is to the fluorescent lamp that a kind of high-frequency electronic direct-current ballast circuit as above is provided, be connected with load, described load comprises straight-pipe fluorescent lamp pipe, colored straight fluorescent tube, annular fluorescent tube and compact energy-saving fluorescent lamp pipe; The two ends of described fluorescent lamp are connected with the output and ground of described rectifier bridge BD2 respectively.
In the present invention, by the second AC-DC conversion module, the high-frequency and high-voltage alternating current that ballast module exports is converted to high-frequency high-voltage direct-current electricity and provides operating voltage for load, change the way directly adopting alternating current ballast powering load in prior art, efficiently solve due to the direct powering load of high-frequency and high-voltage alternating current, make load produce black circle under alternating current effect, reduce the problem in load useful life.
Accompanying drawing explanation
Fig. 1 is the function structure chart of the high-frequency electronic direct-current ballast circuit that the embodiment of the present invention provides;
Fig. 2 is the circuit structure diagram of the high-frequency electronic direct-current ballast circuit that the embodiment of the present invention provides;
Fig. 3 is the circuit structure diagram of the fluorescent lamp that the embodiment of the present invention provides.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Below in conjunction with specific embodiment, specific implementation of the present invention is described in detail:
As shown in Figure 1, the invention provides a kind of high-frequency electronic direct-current ballast circuit, be connected with alternating current AC and load 300, high-frequency electronic direct-current ballast circuit comprises alternating current AC, EMI filtration module 201, the first AC-DC conversion module 202 and ballast module 203 that connect successively, and high-frequency electronic direct-current ballast circuit also comprises:
Second AC-DC conversion module 204, is connected with ballast module 203 and load 300 respectively, and high-frequency and high-voltage alternating current ballast module 203 exported is converted to high-frequency high-voltage direct-current electricity and provides operating voltage for load 300.
It is that 20W and following lamp load connect use that the embodiment of the present invention is mainly applicable to power, the high-frequency and high-voltage alternating current that ballast module 203 exports by the second AC-DC conversion module 204 is converted to high-frequency high-voltage direct-current electricity and provides operating voltage for load, changes the way directly adopting alternating current powering load in prior art.
In embodiments of the present invention, high-frequency electronic direct-current ballast circuit makes not need starter in the process driving load fluorescent lamp, and on-line operation is under direct current, simplify circuit structure, save components and parts, simultaneously more energy-conservation, the longer service life of fluorescent lamp.
Further, as shown in Figure 2, EMI filtration module 201 comprises: resistance R1, filter capacitor C1, filter capacitor C2, inductance coil L1 and inductance coil L2;
The first end of filter capacitor C1 is connected with the first end of inductance coil L1 and the first end of alternating current AC respectively, second end of inductance coil L1 is connected with the first end of filter capacitor C2 and the first end of resistance R1 respectively, the first end of resistance R1 is the first output of EMI filtration module 201, second end of resistance R1 is connected with second end of filter capacitor C2 and second end of inductance coil L2 respectively, second end of resistance R1 is the second output of EMI filtration module 201, the first end of inductance coil L2 respectively with second end of filter capacitor C1 and alternating current AC.
Further, the first AC-DC conversion module 202 is rectifier bridge BD1; First of EMI filtration module 201 exports the first input end of termination rectifier bridge BD1, and second of EMI filtration module 201 exports second input of termination rectifier bridge BD1.
Further, ballast module 203 comprises: polar capacitor C3, electric capacity C4, electric capacity C5, electric capacity C6, electric capacity C7, resistance R3, resistance R4, resistance R5, resistance R6, diode D1, diode D2, diode D3, two end alternating current switch D4, NPN type triode Q1, NPN type triode Q2, inductance coil Ta, inductance coil Tb, inductance coil Tc and inductance L 3;
The input of the just very ballast module 203 of polar capacitor C3, connect the output of rectifier bridge BD1, the positive pole of polar capacitor C3 and the first end of resistance R2 are connected to the first end of the negative electrode of diode D1 and the collector electrode of NPN type triode Q1 and electric capacity C5 altogether, second end of resistance R2 and the anode of diode D3 are connected to the first end of two end alternating current switch D4 and the first end of electric capacity C4 altogether, the negative pole of polar capacitor C3, second end of electric capacity C4 and second end of resistance R4 are connected to second end of inductance coil Tc and the first end of electric capacity C6 altogether, the negative pole of polar capacitor C3 connects the earth terminal of rectifier bridge BD1, the negative electrode of diode D3 and the anode of diode D1 are connected to second end of resistance R3 and the collector electrode of NPN type triode Q2 altogether, the first end of the base stage connecting resistance R5 of NPN type triode Q1, the first end of the second termination inductance coil Ta of resistance R5, the first end of the second termination inductance coil Tb of inductance coil Ta, the first end of the second termination inductance L 3 of inductance coil Tb, second end of the public connecting end connecting resistance R3 of inductance coil Ta and inductance coil Tb, the base stage of the second termination NPN type triode Q2 of two end alternating current switch D4 and the first end of resistance R6, the first end of the emitter connecting resistance R4 of NPN type triode Q2, the first end of the second termination inductance coil Tc of resistance R6, second end of electric capacity C5 is connected with the first end of electric capacity C7 and second end of electric capacity C6 respectively, second end of the second termination capacitor C7 of inductance L 3, the public connecting end of inductance L 3 and electric capacity C7 is the first output of ballast module 203, the public connecting end of electric capacity C5 and electric capacity C6 is the second output of ballast module 203.
As one embodiment of the invention, in ballast module 203, inductance coil Ta, inductance coil Tb, inductance coil Tc have employed annular ferrite core (Fe
2o
3), the reaction sensitivity of intensifier circuit.
Further, the second AC-DC conversion module 204 is rectifier bridge BD2; The first input end of rectifier bridge BD2 connects the first output of ballast module 203, and the second output of the second input termination ballast module 203 of rectifier bridge BD2, the output and ground of rectifier bridge BD2 connects the two-stage of load 300 respectively.
Below in conjunction with the present embodiment, the principle that the present invention realizes is described further.
Alternating current 100 is through EMI filtration module 201 filtering, then be high voltage direct current by the first AC-DC conversion module converts, high voltage direct current is become high-frequency and high-voltage alternating current by the ballast module 203 be made up of two triodes, then by the second AC-DC conversion module 204, high-frequency and high-voltage alternating current is converted to high-frequency high-voltage direct-current electricity powering load.
The present embodiment additionally provides a kind of fluorescent lamp comprising above-mentioned high-frequency electronic direct-current ballast circuit, be connected with load K, load K comprises straight-pipe fluorescent lamp fluorescent tube, colored straight pipe type fluorescent lamp fluorescent tube, circline fluorescent tube and compact energy-saving fluorescent lamp fluorescent tube, and the two ends of load K are connected with the output and ground of rectifier bridge BD2 respectively.
Fig. 3 shows the circuit diagram of the fluorescent lamp that the embodiment of the present invention provides, and in embodiments of the present invention, load K is straight-pipe fluorescent lamp pipe M, and two lamp bases at the two ends of straight-pipe fluorescent lamp fluorescent tube M are connected to together.
In embodiments of the present invention, the runners that can also design a kind of single lead-in wire uses for the straight-pipe fluorescent lamp fluorescent tube M provided to the embodiment of the present invention, and straight-pipe fluorescent lamp list lead-in wire runners also belongs to the embodiment of the present invention and carries out disclosed content.
In embodiments of the present invention, by the second AC-DC conversion module, the high-frequency and high-voltage alternating current that ballast module exports is converted to high-frequency high-voltage direct-current electricity and provides operating voltage for load, change the way directly adopting alternating current ballast powering load in prior art, efficiently solve owing to adopting the direct powering load of alternating current, make load produce black circle under alternating current effect, reduce the problem in load useful life.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (2)
1. a high-frequency electronic direct-current ballast circuit, be connected with alternating current and load, described high-frequency electronic direct-current ballast circuit comprises the alternating current, EMI filtration module, the first AC-DC conversion module and the ballast module that connect successively, it is characterized in that, described high-frequency electronic direct-current ballast circuit also comprises:
Described first AC-DC conversion module is rectifier bridge BD1;
Second AC-DC conversion module, is connected with described ballast module and described load respectively, the high-frequency and high-voltage alternating current that described ballast module exports is converted to high-frequency high-voltage direct-current electricity for described load and provides operating voltage;
Described ballast module comprises: polar capacitor C3, electric capacity C4, electric capacity C5, electric capacity C6, electric capacity C7, resistance R3, resistance R4, resistance R5, resistance R6, diode D1, diode D2, diode D3, two end alternating current switch D4, NPN type triode Q1, NPN type triode Q2, inductance coil Ta, inductance coil Tb, inductance coil Tc and inductance L 3;
The positive pole of described polar capacitor C3 is as the input of described ballast module, connect the output of described rectifier bridge BD1, the positive pole of described polar capacitor C3 and the first end of described resistance R2 are connected to the first end of the negative electrode of described diode D1 and the collector electrode of described NPN type triode Q1 and described electric capacity C5 altogether, second end of described resistance R2 and the anode of described diode D3 are connected to the described first end of two end alternating current switch D4 and the first end of described electric capacity C4 altogether, the negative pole of described polar capacitor C3, second end of described electric capacity C4 and second end of described resistance R4 are connected to second end of described inductance coil Tc and the first end of described electric capacity C6 altogether, the negative pole of described polar capacitor C3 connects the earth terminal of described rectifier bridge BD1, the negative electrode of described diode D3 and the anode of described diode D1 are connected to second end of described resistance R3 and the collector electrode of described NPN type triode Q2 altogether, the base stage of described NPN type triode Q1 connects the first end of described resistance R5, the first end of inductance coil Ta described in second termination of described resistance R5, the first end of inductance coil Tb described in second termination of described inductance coil Ta, the first end of inductance L 3 described in second termination of described inductance coil Tb, the public connecting end of described inductance coil Ta and described inductance coil Tb connects second end of described resistance R3, the base stage of NPN type triode Q2 and the first end of described resistance R6 described in second termination of described two end alternating current switch D4, the emitter of described NPN type triode Q2 connects the first end of described resistance R4, the first end of inductance coil Tc described in second termination of described resistance R6, second end of described electric capacity C5 is connected with the first end of described electric capacity C7 and second end of described electric capacity C6 respectively, second end of electric capacity C7 described in second termination of described inductance L 3, the public connecting end of described inductance L 3 and described electric capacity C7 is the first output of described ballast module, the public connecting end of described electric capacity C5 and described electric capacity C6 is the second output of described ballast module,
Described second AC-DC conversion module is rectifier bridge BD2; The first input end of described rectifier bridge BD2 connects the first output of described ballast module, the second output of ballast module described in the second input termination of described rectifier bridge BD2, and the output and ground of described rectifier bridge BD2 connects the two ends of described load respectively;
Described EMI filtration module comprises:
Resistance R1, filter capacitor C1, filter capacitor C2, inductance coil L1 and inductance coil L2;
The first end of described filter capacitor C1 is connected with the first end of inductance coil L1 and the first end of described alternating current respectively, second end of described inductance coil L1 is connected with the first end of described filter capacitor C2 and the first end of described resistance R1 respectively, the first end of described resistance R1 is the first output of described EMI filtration module, second end of described resistance R1 is connected with second end of described filter capacitor C2 and second end of described inductance coil L2 respectively, second end of described resistance R1 is the second output of described EMI filtration module, the first end of described inductance coil L2 respectively with the second end of described filter capacitor C1 and described alternating current,
First of described EMI filtration module exports the first input end of rectifier bridge BD1 described in termination, and second of described EMI filtration module exports second input of rectifier bridge BD1 described in termination.
2. a fluorescent lamp, be connected with load, described load comprises straight-pipe fluorescent lamp pipe, colored straight fluorescent tube, annular fluorescent tube and compact energy-saving fluorescent lamp pipe, it is characterized in that, described fluorescent lamp comprises high-frequency electronic direct-current ballast circuit as claimed in claim 1.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310136999.8A CN103237396B (en) | 2013-04-18 | 2013-04-18 | A kind of high-frequency electronic direct-current ballast circuit and fluorescent lamp |
| PCT/CN2013/084584 WO2014169584A1 (en) | 2013-04-18 | 2013-09-29 | High-frequency electronic dc ballast circuit and fluorescent lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310136999.8A CN103237396B (en) | 2013-04-18 | 2013-04-18 | A kind of high-frequency electronic direct-current ballast circuit and fluorescent lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103237396A CN103237396A (en) | 2013-08-07 |
| CN103237396B true CN103237396B (en) | 2015-10-28 |
Family
ID=48885398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310136999.8A Expired - Fee Related CN103237396B (en) | 2013-04-18 | 2013-04-18 | A kind of high-frequency electronic direct-current ballast circuit and fluorescent lamp |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103237396B (en) |
| WO (1) | WO2014169584A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103237396B (en) * | 2013-04-18 | 2015-10-28 | 黄燕耀 | A kind of high-frequency electronic direct-current ballast circuit and fluorescent lamp |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5036256A (en) * | 1990-06-21 | 1991-07-30 | Gte Products Corporation | Arc discharge ballast suitable for automotive applications |
| US5744912A (en) * | 1996-06-26 | 1998-04-28 | So; Gin Pang | Electronic ballast having an oscillator shutdown circuit for single or multiple fluorescent tubes for lamps |
| US6255785B1 (en) * | 1999-10-25 | 2001-07-03 | Changgen Yang | High power factor electronic ballast with low lamp current peak ratio |
| CN103037582A (en) * | 2012-12-18 | 2013-04-10 | 东莞市领冠半导体照明有限公司 | Light-emitted diode (LED) daylight lamp power source compatible with fluorescent lamp system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2107116U (en) * | 1991-08-30 | 1992-06-10 | 威海北洋电气集团公司 | Driving means of high-frequency electronic fluorescent lamp |
| CN1457222A (en) * | 2003-06-06 | 2003-11-19 | 陈增昱 | Electronic ballast without twinkles and luminating device |
| CN103237396B (en) * | 2013-04-18 | 2015-10-28 | 黄燕耀 | A kind of high-frequency electronic direct-current ballast circuit and fluorescent lamp |
| CN103237395B (en) * | 2013-04-18 | 2015-05-27 | 黄燕耀 | High-frequency electronic direct-current ballast circuit and fluorescent lamp |
-
2013
- 2013-04-18 CN CN201310136999.8A patent/CN103237396B/en not_active Expired - Fee Related
- 2013-09-29 WO PCT/CN2013/084584 patent/WO2014169584A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5036256A (en) * | 1990-06-21 | 1991-07-30 | Gte Products Corporation | Arc discharge ballast suitable for automotive applications |
| US5744912A (en) * | 1996-06-26 | 1998-04-28 | So; Gin Pang | Electronic ballast having an oscillator shutdown circuit for single or multiple fluorescent tubes for lamps |
| US6255785B1 (en) * | 1999-10-25 | 2001-07-03 | Changgen Yang | High power factor electronic ballast with low lamp current peak ratio |
| CN103037582A (en) * | 2012-12-18 | 2013-04-10 | 东莞市领冠半导体照明有限公司 | Light-emitted diode (LED) daylight lamp power source compatible with fluorescent lamp system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103237396A (en) | 2013-08-07 |
| WO2014169584A1 (en) | 2014-10-23 |
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