CN102647838A - Conversion module of electronic ballast-driven LED (light emitting diode) - Google Patents
Conversion module of electronic ballast-driven LED (light emitting diode) Download PDFInfo
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- CN102647838A CN102647838A CN2012101257396A CN201210125739A CN102647838A CN 102647838 A CN102647838 A CN 102647838A CN 2012101257396 A CN2012101257396 A CN 2012101257396A CN 201210125739 A CN201210125739 A CN 201210125739A CN 102647838 A CN102647838 A CN 102647838A
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Abstract
The invention belongs to the field of electronic technology, and particularly relates to a conversion module of an electronic ballast-driven LED. The conversion module is connected between an electronic ballast and an LED array, and is characterized in that the conversion module includes a high-frequency current limiting circuit for regulating a high-frequency high-voltage AC (alternating current) at the output end of the electronic ballast, a rectifier filter circuit for rectifying and filtering the high-frequency high-voltage AC to a stable DC (direct current), an initial voltage stabilizing circuit for regulating an adaptive LED driving voltage, and a constant current drive circuit for regulating the LED to desired current control, wherein the high-frequency current-limiting circuit, the rectifier filter circuit, the initial voltage stabilizing circuit and the constant-current drive circuit are in fit-connection with each other. According to the invention, the conversion module overcomes the disadvantage of high cost of the existing LED drive power supply, and the LED can be driven only by connecting one necessary conversion controller for driving the LED with four output ports of the common electronic ballast. In addition, the conversion controller has adaptive regulation function, and can supply stable constable current to various kinds of LED load.
Description
Technical field
The invention belongs to electronic technology field, be specially a kind of modular converter of electric ballast driving LED.
Background technology
LED has advantages such as power consumption is little, long service life, extensively has been utilized in fields such as illumination, demonstration, like LED illuminating lamp, LED display, LED lamp decoration or the like.Along with the pay attention to day by day of country to green light source, the market and the application prospect of LED product are boundless.
Because LED uses direct voltage drive, can not directly use line voltage, must convert the LED driving power of direct voltage with line voltage to.
Current LED driving power basically all is the constant-current driving power supply with the Switching Power Supply form, but generally all has the high shortcoming of cost cost.And it is well-known; Existing 20 years of development in fluorescent lamp AC electron ballast are historical; Very ripe already technically; The cost cost is also quite reasonable, and the cost of electric ballast has only 1/3rd of LED driving switch power supply cost under equal power condition, so utilize the electric ballast driving LED to have a lot of advantages.
Summary of the invention
To the problem that exists in the prior art, the object of the present invention is to provide a kind of technical scheme of modular converter of electric ballast driving LED.
The modular converter of described electric ballast driving LED; This modular converter is connected between electric ballast and the led array; It is characterized in that described modular converter comprises the high frequency current-limiting circuit that is used to regulate electronic ballast output end high-frequency and high-voltage alternating current, is used for current rectifying and wave filtering circuit that rectifying and wave-filtering becomes steady direct current, is used to regulate the initial voltage stabilizing circuit that adapts to the LED driving voltage and be used to regulate the required constant-current drive circuit with Current Control of LED, described high frequency current-limiting circuit, current rectifying and wave filtering circuit, initially voltage stabilizing circuit and constant-current drive circuit are connected.
The modular converter of described electric ballast driving LED; It is characterized in that described high frequency current-limiting circuit is made up of resistance R 1, resistance R 2, resistance R 3, resistance R 4 and inductance L; Current rectifying and wave filtering circuit is made up of rectifier bridge and capacitor C that diode D1, diode D2, diode D3, diode D4 form; Initial voltage stabilizing circuit is made up of resistance R 5, resistance R 6, voltage stabilizing didoe D6 and triode Q1, and constant-current drive circuit is made up of current regulator diode D5 and resistance R 7.
The modular converter of described electric ballast driving LED; It is characterized in that four outputs of described electric ballast connect resistance R 1 one ends, resistance R 2 one ends, resistance R 3 one ends and resistance R 4 one ends of high frequency current-limiting circuit in the modular converter respectively; Resistance R 1 other end is connected an end of inductance L with resistance R 2 other ends; The other end of inductance L connects rectifier bridge and imports an end; Resistance R 3 other ends are connected the rectifier bridge input other end with resistance R 4 other ends, rectification bridge output end shunt capacitance C forms steady direct voltage; Rectifier bridge output cathode end connects resistance R 5 one ends and triode Q1 collector electrode; Resistance R 5 other ends connect resistance R 6 one ends and voltage stabilizing didoe D6 negative pole end respectively; Resistance R 6 other ends connect triode Q1 base stage; Voltage stabilizing didoe D6 positive terminal connects rectifier bridge output negative pole end, constitutes initial voltage stabilizing circuit; Triode Q1 emitter connects current regulator diode D5 positive terminal, and rectifier bridge output negative pole end connects resistance R 7 one ends, and resistance R 7 other ends connect the led array negative pole end, and current regulator diode D5 negative pole end connects the led array positive terminal, constitutes the LED constant-current drive circuit.
The modular converter of described electric ballast driving LED is characterized in that described led array is formed by at least two LED serial connections, and LED is plug-in unit or patch light-emitting diode.
The present invention has overcome the high shortcoming of existing LED driving power cost cost; The present invention four output ports of existing ordinary electronic ballast connect LED drive necessary switching controller just can driving LED; This switching controller has the adaptation regulatory function, for various LED loads provide stable constant current.The real purpose that realizes directly replacing day closing fluorescent tube on the lamp bracket of original charged sub-ballast and do not change All other routes; Directly change turning off the light 16W LED day and can using of charged sub-ballast modular converter like the 40W fluorescent tube.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
Below in conjunction with Figure of description the present invention is further specified:
The modular converter of electric ballast driving LED; This modular converter is connected between electric ballast and the led array; Modular converter comprises the high frequency current-limiting circuit that is used to regulate electronic ballast output end high-frequency and high-voltage alternating current, be used for current rectifying and wave filtering circuit that rectifying and wave-filtering becomes steady direct current, be used to regulate the initial voltage stabilizing circuit that adapts to the LED driving voltage and be used to regulate the required constant-current drive circuit with Current Control of LED, and high frequency current-limiting circuit, current rectifying and wave filtering circuit, initially voltage stabilizing circuit and constant-current drive circuit are connected.Wherein, The high frequency current-limiting circuit is made up of resistance R 1, resistance R 2, resistance R 3, resistance R 4 and inductance L; Current rectifying and wave filtering circuit is made up of rectifier bridge and capacitor C that diode D1, diode D2, diode D3, diode D4 form; Initial voltage stabilizing circuit is made up of resistance R 5, resistance R 6, voltage stabilizing didoe D6 and triode Q1, and constant-current drive circuit is made up of current regulator diode D5 and resistance R 7.
Concrete annexation is following: four outputs of electric ballast connect resistance R 1 one ends, resistance R 2 one ends, resistance R 3 one ends and resistance R 4 one ends of high frequency current-limiting circuit in the modular converter respectively; Resistance R 1 other end is connected an end of inductance L with resistance R 2 other ends; The other end of inductance L connects rectifier bridge and imports an end; Resistance R 3 other ends are connected the rectifier bridge input other end with resistance R 4 other ends, rectification bridge output end shunt capacitance C forms steady direct voltage; Rectifier bridge output cathode end connects resistance R 5 one ends and triode Q1 collector electrode; Resistance R 5 other ends connect resistance R 6 one ends and voltage stabilizing didoe D6 negative pole end respectively; Resistance R 6 other ends connect triode Q1 base stage; Voltage stabilizing didoe D6 positive terminal connects rectifier bridge output negative pole end, constitutes initial voltage stabilizing circuit; Triode Q1 emitter connects current regulator diode D5 positive terminal, and rectifier bridge output negative pole end connects resistance R 7 one ends, and resistance R 7 other ends connect the led array negative pole end, and current regulator diode D5 negative pole end connects the led array positive terminal, constitutes the LED constant-current drive circuit.
Led array of the present invention is formed by at least two LED serial connections, and LED is plug-in unit or patch light-emitting diode.
The present invention has overcome the high shortcoming of existing LED driving power cost cost; Four output ports of existing ordinary electronic ballast connect LED drive necessary switching controller just can driving LED; This switching controller has the adaptation regulatory function, for various LED loads provide stable constant current.
Claims (4)
1. the modular converter of electric ballast driving LED; This modular converter is connected between electric ballast and the led array; It is characterized in that described modular converter comprises the high frequency current-limiting circuit that is used to regulate electronic ballast output end high-frequency and high-voltage alternating current, is used for current rectifying and wave filtering circuit that rectifying and wave-filtering becomes steady direct current, is used to regulate the initial voltage stabilizing circuit that adapts to the LED driving voltage and be used to regulate the required constant-current drive circuit with Current Control of LED, described high frequency current-limiting circuit, current rectifying and wave filtering circuit, initially voltage stabilizing circuit and constant-current drive circuit are connected.
2. the modular converter of electric ballast driving LED according to claim 1; It is characterized in that described high frequency current-limiting circuit is made up of resistance R 1, resistance R 2, resistance R 3, resistance R 4 and inductance L; Current rectifying and wave filtering circuit is made up of rectifier bridge and capacitor C that diode D1, diode D2, diode D3, diode D4 form; Initial voltage stabilizing circuit is made up of resistance R 5, resistance R 6, voltage stabilizing didoe D6 and triode Q1, and constant-current drive circuit is made up of current regulator diode D5 and resistance R 7.
3. the modular converter of electric ballast driving LED according to claim 1; It is characterized in that four outputs of described electric ballast connect resistance R 1 one ends, resistance R 2 one ends, resistance R 3 one ends and resistance R 4 one ends of high frequency current-limiting circuit in the modular converter respectively; Resistance R 1 other end is connected an end of inductance L with resistance R 2 other ends; The other end of inductance L connects rectifier bridge and imports an end; Resistance R 3 other ends are connected the rectifier bridge input other end with resistance R 4 other ends, rectification bridge output end shunt capacitance C forms steady direct voltage; Rectifier bridge output cathode end connects resistance R 5 one ends and triode Q1 collector electrode; Resistance R 5 other ends connect resistance R 6 one ends and voltage stabilizing didoe D6 negative pole end respectively; Resistance R 6 other ends connect triode Q1 base stage; Voltage stabilizing didoe D6 positive terminal connects rectifier bridge output negative pole end, constitutes initial voltage stabilizing circuit; Triode Q1 emitter connects current regulator diode D5 positive terminal, and rectifier bridge output negative pole end connects resistance R 7 one ends, and resistance R 7 other ends connect the led array negative pole end, and current regulator diode D5 negative pole end connects the led array positive terminal, constitutes the LED constant-current drive circuit.
4. the modular converter of electric ballast driving LED according to claim 1 is characterized in that described led array is formed by at least two LED serial connections, and LED is plug-in unit or patch light-emitting diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101257396A CN102647838A (en) | 2012-04-26 | 2012-04-26 | Conversion module of electronic ballast-driven LED (light emitting diode) |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101257396A CN102647838A (en) | 2012-04-26 | 2012-04-26 | Conversion module of electronic ballast-driven LED (light emitting diode) |
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| CN102647838A true CN102647838A (en) | 2012-08-22 |
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| CN2012101257396A Pending CN102647838A (en) | 2012-04-26 | 2012-04-26 | Conversion module of electronic ballast-driven LED (light emitting diode) |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102932998A (en) * | 2012-11-13 | 2013-02-13 | 镇江路美耐光电科技有限公司 | Power converter |
| CN103841697A (en) * | 2012-11-23 | 2014-06-04 | 罗正华 | IC chip and control circuit of LED directly driven by electronic ballast |
| WO2015157906A1 (en) * | 2014-04-15 | 2015-10-22 | 邓树兴 | Led daylight lamp tube driven by fluorescent lamp electronic ballast and lighting fixture |
| CN107006089A (en) * | 2014-11-07 | 2017-08-01 | 飞利浦照明控股有限公司 | Actuator device and the driving method for driving load |
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| CN101106852A (en) * | 2007-06-25 | 2008-01-16 | 四川大学 | Constant Current and Dimming Control Circuit for Illumination LED Array |
| CN101541116A (en) * | 2008-03-19 | 2009-09-23 | 杨书水 | Electronic ballast of alternate current high-power LED illumination energy-saving lamp |
| US20100019682A1 (en) * | 2008-07-25 | 2010-01-28 | Chien-Ping Lu | LED driver and controller thereof |
| CN101742622A (en) * | 2008-11-05 | 2010-06-16 | 财团法人工业技术研究院 | Wireless communication network power saving method and device and computer readable storage medium |
| CN201682685U (en) * | 2010-05-25 | 2010-12-22 | 日银Imp微电子有限公司 | Electronic ballast for compact fluorescent lamp |
| CN201742622U (en) * | 2010-08-12 | 2011-02-09 | 无锡科尔华电子有限公司 | Constant-current control power supply for LED (light-emitting diode) street lamp |
| CN102355780A (en) * | 2011-09-23 | 2012-02-15 | 浙江世明光学科技有限公司 | LED (light-emitting diode) tube and drive circuit thereof |
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2012
- 2012-04-26 CN CN2012101257396A patent/CN102647838A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101106852A (en) * | 2007-06-25 | 2008-01-16 | 四川大学 | Constant Current and Dimming Control Circuit for Illumination LED Array |
| CN101541116A (en) * | 2008-03-19 | 2009-09-23 | 杨书水 | Electronic ballast of alternate current high-power LED illumination energy-saving lamp |
| US20100019682A1 (en) * | 2008-07-25 | 2010-01-28 | Chien-Ping Lu | LED driver and controller thereof |
| CN101742622A (en) * | 2008-11-05 | 2010-06-16 | 财团法人工业技术研究院 | Wireless communication network power saving method and device and computer readable storage medium |
| CN201682685U (en) * | 2010-05-25 | 2010-12-22 | 日银Imp微电子有限公司 | Electronic ballast for compact fluorescent lamp |
| CN201742622U (en) * | 2010-08-12 | 2011-02-09 | 无锡科尔华电子有限公司 | Constant-current control power supply for LED (light-emitting diode) street lamp |
| CN102355780A (en) * | 2011-09-23 | 2012-02-15 | 浙江世明光学科技有限公司 | LED (light-emitting diode) tube and drive circuit thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102932998A (en) * | 2012-11-13 | 2013-02-13 | 镇江路美耐光电科技有限公司 | Power converter |
| CN103841697A (en) * | 2012-11-23 | 2014-06-04 | 罗正华 | IC chip and control circuit of LED directly driven by electronic ballast |
| CN103841697B (en) * | 2012-11-23 | 2017-04-05 | 罗正华 | The IC chip and its control circuit of electric ballast direct drive LED |
| WO2015157906A1 (en) * | 2014-04-15 | 2015-10-22 | 邓树兴 | Led daylight lamp tube driven by fluorescent lamp electronic ballast and lighting fixture |
| CN107006089A (en) * | 2014-11-07 | 2017-08-01 | 飞利浦照明控股有限公司 | Actuator device and the driving method for driving load |
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