CN103237396A - High-frequency electronic direct-current ballast circuit and fluorescent lamp - Google Patents
High-frequency electronic direct-current ballast circuit and fluorescent lamp Download PDFInfo
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- CN103237396A CN103237396A CN2013101369998A CN201310136999A CN103237396A CN 103237396 A CN103237396 A CN 103237396A CN 2013101369998 A CN2013101369998 A CN 2013101369998A CN 201310136999 A CN201310136999 A CN 201310136999A CN 103237396 A CN103237396 A CN 103237396A
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- capacitor
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- inductance coil
- ballast
- module
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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
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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
- 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
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- 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
Abstract
The invention belongs to the field of circuits and provides a high-frequency electronic direct-current ballast circuit and a fluorescent lamp. In the embodiment of the invention, through a second alternating-current-to-direct-current conversion module, high-frequency high-voltage alternating current which is output by a ballast module is converted into high-frequency high-voltage direct current to provide working voltage for a load. Therefore, the method of supplying power to the load by directly using an alternating-current ballast in the prior art is changed, and the problems that black circles are produced on the load under the effect of alternating current and the service life of the load is reduced because high-frequency high-voltage alternating current is directly supplied to the load are effectively solved.
Description
Technical field
The invention belongs to circuit field, relate in particular to a kind of high-frequency electronic dc ballast circuit and fluorescent lamp.
Background technology
The development of electric power has promoted social progress greatly, and people's life more and more be unable to do without electricity, normal lighting, and operating illumination all needs electricity, and electricity brings great convenience for people's life.But, traditional fluorescent light pipe all is to use under the condition of alternating current, the inductance type ballast that uses mostly in the fluorescent lamp circuit, expended a large amount of metal materials, wasted a large amount of electric energy simultaneously, and alternating current voltage becomes sinusoidal periodic to change, alternating current ballast produces big impedance in fluorescent lamp, cause that easily the fluorescent tube two ends produce black circle, influence brightness of illumination, reduce the useful life of fluorescent lamp.
Summary of the invention
The invention provides a kind of high-frequency electronic dc ballast circuit, be intended to solve the direct powering load of alternating current ballast in the prior art, make to load on to produce black circle under the alternating current effect, reduce the load problem in useful life.
In order to solve the problems of the technologies described above, the invention provides a kind of high-frequency electronic dc ballast circuit, be connected with load with alternating current, described high-frequency electronic dc ballast circuit comprises alternating current, EMI filtration module, the first AC-DC conversion module and the ballast module that connects successively, and described high-frequency electronic dc ballast circuit also comprises:
The second AC-DC conversion module is connected with described load with described ballast module respectively, the high-frequency and high-voltage alternating current of described ballast module output is converted to the high-frequency high-voltage direct-current electricity provides operating voltage for described load.
Further, described EMI filtration module comprises: resistance R 1, filter capacitor C1, filter capacitor C2, inductance coil L1 and inductance coil L2;
First end of described filter capacitor C1 is connected with first end of inductance coil L1 and first end of described alternating current respectively, second end of described inductance coil L1 is connected with first end of described filter capacitor C2 and first end of described resistance R 1 respectively, first end of described resistance R 1 is first output of described EMI filtration module, second end of described resistance R 1 is connected with second end of described filter capacitor C2 and second end of described inductance coil L2 respectively, second end of described resistance R 1 is second output of described EMI filtration module, first end of described inductance coil L2 respectively with second end of described filter capacitor C1 and described alternating current.
Further, the described first AC-DC conversion module is rectifier bridge BD1;
The first input end of the described rectifier bridge BD1 of the first output termination of described EMI filtration module, second input of the described rectifier bridge BD1 of the second output termination of described EMI filtration module.
Further, described ballast module comprises: polar capacitor C3, capacitor C 4, capacitor C 5, capacitor C 6, capacitor C 7, resistance R 3, resistance R 4, resistance R 5, resistance R 6, 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, first end of the positive pole of described polar capacitor C3 and described resistance R 2 is connected to negative electrode and the collector electrode of described NPN type triode Q1 and first end of described capacitor C 5 of described diode D1 altogether, second end of described resistance R 2 and the anode of described diode D3 are connected to first end of described two end alternating current switch D4 and first end of described capacitor C 4 altogether, the negative pole of described polar capacitor C3, second end of described capacitor C 4 and second end of described resistance R 4 are connected to second end of described inductance coil Tc and first end of described capacitor C 6 altogether, the negative pole of described polar capacitor C3 connects the earth terminal of described rectifier bridge BD1, the anode of the negative electrode of described diode D3 and described diode D1 is connected to second end of described resistance R 3 and the collector electrode of described NPN type triode Q2 altogether, the base stage of described NPN type triode Q1 connects first end of described resistance R 5, first end of the described inductance coil Ta of second termination of described resistance R 5, first end of the described inductance coil Tb of second termination of described inductance coil Ta, first end of the described inductance L 3 of 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 R 3, the base stage of the described NPN type of second termination triode Q2 of described two end alternating current switch D4 and first end of described resistance R 6, the emitter of described NPN type triode Q2 connects first end of described resistance R 4, first end of the described inductance coil Tc of second termination of described resistance R 6, second end of described capacitor C 5 is connected with first end of described capacitor C 7 and second end of described capacitor C 6 respectively, second end of the described capacitor C 7 of second termination of described inductance L 3, the public connecting end of described inductance L 3 and described capacitor C 7 is first output of described ballast module, and the public connecting end of described capacitor C 5 and described capacitor C 6 is second output of described ballast module.
Further, the described second AC-DC conversion module is rectifier bridge BD2;
The first input end of described rectifier bridge BD2 connects first output of described ballast module, second output of the described ballast module of the second input termination of described rectifier bridge BD2, and 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 provide the fluorescent lamp of a kind of aforesaid high-frequency electronic dc ballast circuit, be connected with load, described load comprises straight-pipe fluorescent lamp pipe, colored straight pipe type fluorescent lamp pipe, 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 of ballast module output is converted to the high-frequency high-voltage direct-current electricity provides operating voltage for load, changed the way that directly adopts the alternating current ballast powering load in the prior art, efficiently solve because the direct powering load of high-frequency and high-voltage alternating current, make to load on to produce black circle under the alternating current effect, reduce the load problem in useful life.
Description of drawings
Fig. 1 is the modular structure figure of the high-frequency electronic dc ballast circuit that provides of the embodiment of the invention;
Fig. 2 is the circuit structure diagram of the high-frequency electronic dc ballast circuit that provides of the embodiment of the invention;
Fig. 3 is the circuit structure diagram of the fluorescent lamp that provides of the embodiment of the invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, 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 explaining the present invention, and be not used in restriction 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 dc ballast circuit, be connected with load 300 with alternating current AC, high-frequency electronic dc ballast circuit comprises alternating current AC, EMI filtration module 201, the first AC-DC conversion module 202 and the ballast module 203 that connects successively, and high-frequency electronic dc ballast circuit also comprises:
The second AC-DC conversion module 204 is connected with load 300 with ballast module 203 respectively, the high-frequency and high-voltage alternating current of ballast module 203 output is converted to the high-frequency high-voltage direct-current electricity provides operating voltage for load 300.
The embodiment of the invention is applicable to that mainly power is that 20W and following light fixture load connect use, the high-frequency and high-voltage alternating current that the second AC-DC conversion module 204 is exported ballast module 203 is converted to the high-frequency high-voltage direct-current electricity provides operating voltage for load, has changed the way that directly adopts the alternating current powering load in the prior art.
In embodiments of the present invention, high-frequency electronic dc ballast circuit makes in the process that drives the load fluorescent lamp does not need starter, and on-line operation is under direct current, simplified circuit structure, saved 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 R 1, filter capacitor C1, filter capacitor C2, inductance coil L1 and inductance coil L2;
First end of filter capacitor C1 is connected with first end of inductance coil L1 and first end of alternating current AC respectively, second end of inductance coil L1 is connected with first end of filter capacitor C2 and first end of resistance R 1 respectively, first end of resistance R 1 is first output of EMI filtration module 201, second end of resistance R 1 is connected with second end of filter capacitor C2 and second end of inductance coil L2 respectively, second end of resistance R 1 is second output of EMI filtration module 201, 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; The first input end of the first output termination rectifier bridge BD1 of EMI filtration module 201, second input of the second output termination rectifier bridge BD1 of EMI filtration module 201.
Further, ballast module 203 comprises: polar capacitor C3, capacitor C 4, capacitor C 5, capacitor C 6, capacitor C 7, resistance R 3, resistance R 4, resistance R 5, resistance R 6, 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, first end of the positive pole of polar capacitor C3 and resistance R 2 is connected to negative electrode and the collector electrode of NPN type triode Q1 and first end of capacitor C 5 of diode D1 altogether, second end of resistance R 2 and the anode of diode D3 are connected to first end of two end alternating current switch D4 and first end of capacitor C 4 altogether, the negative pole of polar capacitor C3, second end of capacitor C 4 and second end of resistance R 4 are connected to second end of inductance coil Tc and first end of capacitor C 6 altogether, the negative pole of polar capacitor C3 connects the earth terminal of rectifier bridge BD1, the anode of the negative electrode of diode D3 and diode D1 is connected to second end of resistance R 3 and the collector electrode of NPN type triode Q2 altogether, first end of the base stage connecting resistance R5 of NPN type triode Q1, first end of the second termination inductance coil Ta of resistance R 5, first end of the second termination inductance coil Tb of inductance coil Ta, 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 first end of resistance R 6, first end of the emitter connecting resistance R4 of NPN type triode Q2, first end of the second termination inductance coil Tc of resistance R 6, second end of capacitor C 5 is connected with first end of capacitor C 7 and second end of capacitor C 6 respectively, second end of the second termination capacitor C7 of inductance L 3, the public connecting end of inductance L 3 and capacitor C 7 is first output of ballast module 203, and the public connecting end of capacitor C 5 and capacitor C 6 is second output of ballast module 203.
As one embodiment of the invention, inductance coil Ta, inductance coil Tb, inductance coil Tc have adopted annular ferrite core (Fe in the ballast module 203
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 first output of ballast module 203, second output of the second input termination ballast module 203 of rectifier bridge BD2, and the output and ground of rectifier bridge BD2 connects the two-stage of load 300 respectively.
Below in conjunction with present embodiment the principle that the present invention realizes is described further.
Present embodiment also provides a kind of fluorescent lamp that comprises above-mentioned high-frequency electronic dc ballast circuit, K is connected with load, 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 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 straight-pipe fluorescent lamp fluorescent tube M that the runners that can also design a kind of single lead-in wire is used for providing to the embodiment of the invention uses, and straight-pipe fluorescent lamp list lead-in wire runners also belongs to the embodiment of the 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 of ballast module output is converted to the high-frequency high-voltage direct-current electricity provides operating voltage for load, changed the way that directly adopts the alternating current ballast powering load in the prior art, efficiently solve owing to adopt the direct powering load of alternating current, make to load on to produce black circle under the alternating current effect, reduce the load problem in useful life.
The above only is preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. high-frequency electronic dc ballast circuit, be connected with load with alternating current, described high-frequency electronic dc ballast circuit comprises alternating current, EMI filtration module, the first AC-DC conversion module and the ballast module that connects successively, it is characterized in that described high-frequency electronic dc ballast circuit also comprises:
The second AC-DC conversion module is connected with described load with described ballast module respectively, the high-frequency and high-voltage alternating current of described ballast module output is converted to the high-frequency high-voltage direct-current electricity provides operating voltage for described load.
2. high-frequency electronic as claimed in claim 1 dc ballast circuit is characterized in that described EMI filtration module comprises:
Resistance R 1, filter capacitor C1, filter capacitor C2, inductance coil L1 and inductance coil L2;
First end of described filter capacitor C1 is connected with first end of inductance coil L1 and first end of described alternating current respectively, second end of described inductance coil L1 is connected with first end of described filter capacitor C2 and first end of described resistance R 1 respectively, first end of described resistance R 1 is first output of described EMI filtration module, second end of described resistance R 1 is connected with second end of described filter capacitor C2 and second end of described inductance coil L2 respectively, second end of described resistance R 1 is second output of described EMI filtration module, first end of described inductance coil L2 respectively with second end of described filter capacitor C1 and described alternating current.
3. high-frequency electronic as claimed in claim 2 dc ballast circuit is characterized in that the described first AC-DC conversion module is rectifier bridge BD1;
The first input end of the described rectifier bridge BD1 of the first output termination of described EMI filtration module, second input of the described rectifier bridge BD1 of the second output termination of described EMI filtration module.
4. high-frequency electronic as claimed in claim 3 dc ballast circuit is characterized in that described ballast module comprises:
Polar capacitor C3, capacitor C 4, capacitor C 5, capacitor C 6, capacitor C 7, resistance R 3, resistance R 4, resistance R 5, resistance R 6, 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, first end of the positive pole of described polar capacitor C3 and described resistance R 2 is connected to negative electrode and the collector electrode of described NPN type triode Q1 and first end of described capacitor C 5 of described diode D1 altogether, second end of described resistance R 2 and the anode of described diode D3 are connected to first end of described two end alternating current switch D4 and first end of described capacitor C 4 altogether, the negative pole of described polar capacitor C3, second end of described capacitor C 4 and second end of described resistance R 4 are connected to second end of described inductance coil Tc and first end of described capacitor C 6 altogether, the negative pole of described polar capacitor C3 connects the earth terminal of described rectifier bridge BD1, the anode of the negative electrode of described diode D3 and described diode D1 is connected to second end of described resistance R 3 and the collector electrode of described NPN type triode Q2 altogether, the base stage of described NPN type triode Q1 connects first end of described resistance R 5, first end of the described inductance coil Ta of second termination of described resistance R 5, first end of the described inductance coil Tb of second termination of described inductance coil Ta, first end of the described inductance L 3 of 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 R 3, the base stage of the described NPN type of second termination triode Q2 of described two end alternating current switch D4 and first end of described resistance R 6, the emitter of described NPN type triode Q2 connects first end of described resistance R 4, first end of the described inductance coil Tc of second termination of described resistance R 6, second end of described capacitor C 5 is connected with first end of described capacitor C 7 and second end of described capacitor C 6 respectively, second end of the described capacitor C 7 of second termination of described inductance L 3, the public connecting end of described inductance L 3 and described capacitor C 7 is first output of described ballast module, and the public connecting end of described capacitor C 5 and described capacitor C 6 is second output of described ballast module.
5. high-frequency electronic as claimed in claim 4 dc ballast circuit is characterized in that the described second AC-DC conversion module is rectifier bridge BD2;
The first input end of described rectifier bridge BD2 connects first output of described ballast module, second output of the described ballast module of 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.
6. fluorescent lamp, be connected with load, described load comprises straight-pipe fluorescent lamp pipe, colored straight pipe type fluorescent lamp pipe, annular fluorescent tube and compact energy-saving fluorescent lamp pipe, it is characterized in that described fluorescent lamp comprises as the arbitrary described high-frequency electronic of claim 1 to 5 dc ballast circuit.
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 true CN103237396A (en) | 2013-08-07 |
| CN103237396B CN103237396B (en) | 2015-10-28 |
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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) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014169584A1 (en) * | 2013-04-18 | 2014-10-23 | Huang Yanyao | High-frequency electronic dc 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 |
| CN103237395B (en) * | 2013-04-18 | 2015-05-27 | 黄燕耀 | High-frequency electronic direct-current ballast circuit and fluorescent lamp |
| CN103237396B (en) * | 2013-04-18 | 2015-10-28 | 黄燕耀 | A kind of 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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014169584A1 (en) * | 2013-04-18 | 2014-10-23 | Huang Yanyao | High-frequency electronic dc ballast circuit and fluorescent lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103237396B (en) | 2015-10-28 |
| WO2014169584A1 (en) | 2014-10-23 |
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