CN2829287Y - Electronic ballast with passive power factor correcting circuit - Google Patents
Electronic ballast with passive power factor correcting circuit Download PDFInfo
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- CN2829287Y CN2829287Y CN 200520063231 CN200520063231U CN2829287Y CN 2829287 Y CN2829287 Y CN 2829287Y CN 200520063231 CN200520063231 CN 200520063231 CN 200520063231 U CN200520063231 U CN 200520063231U CN 2829287 Y CN2829287 Y CN 2829287Y
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Abstract
The utility model discloses an electronic ballast with a passive power factor correcting circuit. The utility model comprises a filtering EMC circuit, a bridge type rectifying circuit and a high-frequency oscillating circuit, wherein the bridge type rectifying circuit is connected with the filtering EMC circuit, the passive power factor correcting circuit is connected between the bridge type rectifying circuit and the high-frequency oscillating circuit, and the high-frequency oscillating circuit is connected with an anomaly protection circuit. The utility model provides an electronic ballast with a passive power factor correcting circuit, which is different from the prior art and has the advantages of high power factor, low harmonic content, high working reliability, reduction of lamp current wave crest factor, wide supply voltage range, fast starting, no flicker and long service life. The ballast combines the advantages of a high pump type and a double-pump type, so the electron ballast can be stably work in a constant input current state and makes the waveform of a lamp current even, and the wave crest coefficient is smaller than 1.7.
Description
Technical field
The utility model relates to a kind of electric ballast, particularly a kind of electric ballast with passive power factor correcting circuit.
Background technology
The electric ballast that has PPFC (Passive Power Factor Correction) on the existing market has two kinds basically: high pump formula and double pump formula, the former direct current supply voltage is higher, and fluctuation with the input supply voltage fluctuation, easily cause electric ballast overall work reliability variation, as when input ac voltage is 242V, VD is 320-330V, adopt the electrochemical capacitor be nominally about 400V and the triode surplus deficiency that just seems for circuit, temperature rise on triode and the inductance also can be higher simultaneously, influences the life-span of ballast; The latter's input parameter can only reach the requirement of H level, can only bring up to power factor about 0.93, will make the input harmonic current distortion serious like this, about the regulation of current harmonics, do not meet the electromagnetic compatibility Harmonics of Input content requirement of IEC61000-3-2 regulation in the GB17625.1-2003 " the harmonic current limit value that low-voltage electrical apparatus and electronic equipment send (the every phase input current of equipment≤16A) " yet.And the electric ballast of this two classes PPFC (Passive Power Factor Correction) is when being used in the fluorescent tube that upper pipe presses, and its lamp current crest coefficient is difficult to reach the requirement of domestic and international standard.
China's utility model patent discloses a kind of electric ballast with PPFC (Passive Power Factor Correction) for No. 03247568.3, comprise bridge rectifier, high-frequency generator, also comprise passive power factor correcting circuit, it comprises diode D1 to D4, capacitor C 2, C3, inductance L and electrochemical capacitor C4, bridge rectifier is anodal to be connected with inductance L, the other end of L is connected with the D2 negative pole with D1 is anodal, the negative pole of D1 and C2, C4 is anodal to be connected with the high-frequency generator anode, the positive pole of D2 and D3 negative pole, the other end of C2, C3 is connected with fluorescent lamp circuit, the positive pole of D3 and D4 negative pole, the other end of C3 is connected with the bridge rectifier negative pole, the positive pole of D4 is connected with the high-frequency generator negative terminal with the C4 negative pole, make the electric ballast steady operation at permanent input current state, improve input power factor, reduce Harmonics of Input content, improving lamp current device crest ratio, is the electronic ballast for fluoresent lamp that a kind of adapted upper pipe is pressed.
The utility model content
Technical problem to be solved in the utility model provides a kind of High Power Factor, low harmonic content, reliable operation, reduction lamp current crest factor, adapts to the supply voltage wide ranges, starts soon, does not glimmer, the life-span is long and be different from the passive power factor correcting circuit that has of prior art.
The utility model is achieved through the following technical solutions: design a kind of electric ballast with passive power factor correcting circuit; the bridge rectifier, the high-frequency oscillating circuits that comprise filtering EMC circuit, link with filtering EMC circuit; be connected with passive power factor correcting circuit between bridge rectifier and high-frequency oscillating circuits, high-frequency oscillating circuits is connected with abnormity protection circuit.
Described passive power factor correcting circuit comprises diode D5, D6, D7, D8, D9, D10, thin-film capacitor C5, C6, electrochemical capacitor C7, C8, inductance L 2, one end of inductance L 2 and the positive output end of bridge rectifier link, the positive pole of the other end and diode D5 links, the positive pole of the negative pole of D5 and diode D6, the end of thin-film capacitor C5 links, the positive pole of the negative pole of D6 and electrochemical capacitor C7, the negative pole of diode D9, the positive input terminal of high-frequency oscillating circuits links, the negative pole of the positive pole of diode D9 and diode D7, the positive pole of electrochemical capacitor C8 links, the other end of the positive pole of diode D7 and thin-film capacitor C5, the end of C6, the negative pole of diode D8, and fluorescent lamp circuit links, the negative pole of the positive pole of diode D8 and electrochemical capacitor C7, the negative pole of diode D10 links, the negative pole of the positive pole of diode D10 and electrochemical capacitor C8, the other end of C6 links.
Passive power factor correcting circuit also comprises capacitor C 4, and the end of C4 and the positive output end of bridge rectifier link, and the positive pole of the other end and diode D8, the negative pole of capacitor C 8 link.
Described abnormity protection circuit; comprise resistance R 9; R10; R11; R12; R13; electrochemical capacitor C11; diode D17; bidirectional diode D18; controllable silicon Q4; the positive pole of diode D17 is connected to L3 auxiliary winding one end by R12; the negative pole of D17 is connected in the anode of electrochemical capacitor C11 and the end of bidirectional diode D18; the control utmost point of the other end of D18 and controllable silicon Q4 links; the negative electrode of Q4 connects with the base stage of Q3; the anode of Q4 is connected in the input of oscillating circuit by resistance R 9; the collector electrode of Q3 connects with Q2 base stage in the oscillating circuit; the negativing ending grounding of capacitor C 11; on the R13 C11 in parallel; R11 is connected between the base stage and emitter of Q3, and R10 is connected between the control utmost point and negative electrode of Q4.
Described diode D5, D6, D7, D8, D9, D10's is withstand voltage all greater than 100V, the range of capacity of capacitor C 4, C5, C6 is 100PF-1uF and withstand voltage greater than 50V, the range of capacity of electrochemical capacitor C7, C8 is 1uF-100uF and withstand voltage greater than 50V, and the inductance value of L2 is greater than 0.1mH.
The utlity model has the advantage of high pump formula and double pump formula, circuit is optimized more, makes input characteristics, and output characteristic all improves significantly, and input power factor is higher than 0.98.0 °, 180 °, 360 ° of input voltage Vac etc. locate by C5, the D6 accessory power supply affords redress, outside this interval, the accessory power supply that is made of C5, C6, D7, D8, D9, D10, C7, C8, L2 etc. affords redress, make the abundant sineization of current waveform of input, make electric ballast energy steady operation at permanent input current state, make the waveform of lamp current more smooth simultaneously, crest factor is less than 1.7.
Description of drawings
Fig. 1 is the electric ballast functional-block diagram that the utlity model has passive power factor correcting circuit;
Fig. 2 is the circuit of electronic ballast schematic diagram that the utlity model has passive power factor correcting circuit.
Embodiment
Be elaborated below with reference to accompanying drawing:
As shown in Figure 1; the utlity model has the electric ballast of passive power factor correcting circuit; the bridge rectifier, the high-frequency oscillating circuits that comprise filtering EMC circuit, link with filtering EMC circuit; be connected with passive power factor correcting circuit between bridge rectifier and high-frequency oscillating circuits, high-frequency oscillating circuits is connected with abnormity protection circuit.
According to circuit theory diagrams shown in Figure 2, the utility model is set forth below:
External power source is after EMC circuit and bridge rectifier processing, deliver to by diode D5, D6, D7, D8, D9, D10, capacitor C 5, C6, electrochemical capacitor C7, C8, one end of inductance L 2 and the positive output end of bridge rectifier link, the positive pole of the other end and diode D5 links, the positive pole of the negative pole of D5 and diode D6, one end of capacitor C 5 links, the positive pole of the negative pole of D6 and electrochemical capacitor C7, the negative pole of diode D9, the positive input terminal of high-frequency oscillating circuits links, the negative pole of the positive pole of diode D9 and diode D7, the positive pole of electrochemical capacitor C8 links, the other end of the positive pole of diode D7 and capacitor C 5, the end of C6, the negative pole of diode D8, and fluorescent lamp circuit links, the negative pole of the positive pole of diode D8 and electrochemical capacitor C7, the negative pole of diode D10 links, the negative pole of the positive pole of diode D10 and electrochemical capacitor C8, the passive power factor correcting circuit processing that the other end of C6 links and forms.
When fluorescent lamp reaches life termination; the cathode emission material consumption totally; light tube electric voltage rises rapidly; the electric current of triode obviously rises; the 2-3 that is about common electric current doubly; can cause the triode temperature to rise like this; whole ballast temperature raises; be in unusual and dangerous state or circuit and overheated overcurrent condition occurs; the utility model provides a kind of abnormity protection circuit; it is by resistance R 9; R10; R11; R12; R13; electrochemical capacitor C11; diode D17; bidirectional diode D18; controllable silicon Q4 forms; the anode of diode D17 is connected to an end of inductance L 3 auxiliary winding by R12; the negative terminal of D17 is connected in the anode of electrochemical capacitor C11 and the end of bidirectional diode D18; the control utmost point of the other end of D18 and controllable silicon Q4 links; the negative electrode of Q4 connects with the base stage of Q3; the anode of Q4 is connected in the input of oscillating circuit by resistance R 9; the collector electrode of Q3 connects with Q2 base stage in the oscillating circuit; the negativing ending grounding of capacitor C 11; on the R13 C11 in parallel; R11 is connected between the base stage and emitter of Q3, and R10 is connected between the control utmost point and negative pole of Q4.When being in abnormality, the voltage on the inductance C3 rises rapidly, by inferior grade coupled, through resistance R 12 current limlitings, diode D12 rectification, the voltage on the capacitor C 11 rises rapidly, when the voltage on the C11 reaches the cut-in voltage of bidirectional diode D18, bidirectional diode D18 conducting, thus controllable silicon Q4 conducting triggered, after the controllable silicon Q4 conducting, triode Q3 is provided base current, make triode Q3 conducting, the base potential of triode Q2 is dragged down, make entire circuit be in the failure of oscillation state.
The utility model combines the advantage of high pump formula and double pump formula, circuit is optimized more, make input characteristics, output characteristic all improves significantly, and 0 °, 180 °, 360 ° of input voltage Vac etc. locates by C5, the D6 accessory power supply affords redress, outside this interval, the accessory power supply that is made of C5, C6, D7, D8, D9, D10, C7, C8, L2 etc. affords redress, and makes the abundant sineization of current waveform of input, make the waveform of lamp current more smooth simultaneously, crest factor is less than 1.7.
Diode D5, D6 in the utility model, D7, D8, D9, D10's is withstand voltage all greater than 100V, the range of capacity of capacitor C 5, C6 is 100PF-1uF and withstand voltage greater than 50V, the range of capacity of electrochemical capacitor C7, C8 is 1uF-100uF and withstand voltage greater than 50V, and the inductance value of L2 is greater than 0.1mH.
Claims (4)
1. electric ballast with passive power factor correcting circuit; the bridge rectifier, the high-frequency oscillating circuits that comprise filtering EMC circuit, link with filtering EMC circuit; it is characterized in that: between bridge rectifier and high-frequency oscillating circuits, be connected with passive power factor correcting circuit; high-frequency oscillating circuits is connected with abnormity protection circuit
Described passive power factor correcting circuit comprises diode D5, D6, D7, D8, D9, D10, capacitor C 5, C6, electrochemical capacitor C7, C8, inductance L 2, one end of inductance L 2 and the positive output end of bridge rectifier link, the positive pole of the other end and diode D5 links, the positive pole of the negative pole of D5 and diode D6, one end of capacitor C 5 links, the positive pole of the negative pole of D6 and electrochemical capacitor C7, the negative pole of diode D9, the positive input terminal of high-frequency oscillating circuits links, the negative pole of the positive pole of diode D9 and diode D7, the positive pole of electrochemical capacitor C8 links, the other end of the positive pole of diode D7 and capacitor C 5, the end of C6, the negative pole of diode D8, and fluorescent lamp circuit links, the negative pole of the positive pole of diode D8 and electrochemical capacitor C7, the negative pole of diode D10 links, the negative pole of the positive pole of diode D10 and electrochemical capacitor C8, the other end of C6 links.
2. the electric ballast with passive power factor correcting circuit according to claim 1, it is characterized in that: described passive power factor correcting circuit also comprises capacitor C 4, the end of C4 and the positive output end of bridge rectifier link, and the positive pole of the other end and diode D8, the negative pole of capacitor C 8 link.
3. the electric ballast with PPFC (Passive Power Factor Correction) according to claim 1; it is characterized in that: described abnormity protection circuit; comprise resistance R 9; R10; R11; R12; R13; electrochemical capacitor C11; diode D17; bidirectional diode D18; controllable silicon Q4; triode Q3; the anode of diode D17 is connected to an end of the auxiliary winding of inductance L 3 by R12; the negative terminal of D17 is connected in the anode of electrochemical capacitor C11 and the end of bidirectional diode D18; the control utmost point of the other end of D18 and controllable silicon Q4 links; the negative electrode of Q4 connects with the base stage of Q3; the anode of Q4 is connected in the input of oscillating circuit by resistance R 9; the collector electrode of Q3 connects with Q2 base stage in the oscillating circuit; the negativing ending grounding of capacitor C 11; on the R13 C11 in parallel; R11 is connected between the base stage and emitter of Q3, and R10 is connected between the control utmost point and negative electrode of Q4.
4. the electric ballast with passive power factor correcting circuit according to claim 1, it is characterized in that: described diode D5, D6, D7, D8, D9, D10's is withstand voltage all greater than 100V, the range of capacity of capacitor C 4, C5, C6 is 100PF-1uF and withstand voltage greater than 50V, the range of capacity of electrochemical capacitor C7, C8 is 1uF-100uF and withstand voltage greater than 50V, and the inductance value of L2 is greater than 0.1mH.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520063231 CN2829287Y (en) | 2005-08-15 | 2005-08-15 | Electronic ballast with passive power factor correcting circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520063231 CN2829287Y (en) | 2005-08-15 | 2005-08-15 | Electronic ballast with passive power factor correcting circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2829287Y true CN2829287Y (en) | 2006-10-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520063231 Expired - Fee Related CN2829287Y (en) | 2005-08-15 | 2005-08-15 | Electronic ballast with passive power factor correcting circuit |
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| CN (1) | CN2829287Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101848585A (en) * | 2010-06-01 | 2010-09-29 | 杭州意博高科电器有限公司 | 110V passive high-power factor circuit |
| CN101442867B (en) * | 2007-11-19 | 2012-11-07 | 上海亚明灯泡厂有限公司 | Passive high power element circuit |
| CN107117059A (en) * | 2017-06-05 | 2017-09-01 | 上海蔚来汽车有限公司 | The vehicle-mounted end charging device of electric automobile, electric automobile |
| CN107542692A (en) * | 2017-09-30 | 2018-01-05 | 程凌军 | A kind of bladeless fan |
-
2005
- 2005-08-15 CN CN 200520063231 patent/CN2829287Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101442867B (en) * | 2007-11-19 | 2012-11-07 | 上海亚明灯泡厂有限公司 | Passive high power element circuit |
| CN101848585A (en) * | 2010-06-01 | 2010-09-29 | 杭州意博高科电器有限公司 | 110V passive high-power factor circuit |
| CN101848585B (en) * | 2010-06-01 | 2013-04-24 | 杭州意博高科电器有限公司 | 110V passive high-power factor circuit |
| CN107117059A (en) * | 2017-06-05 | 2017-09-01 | 上海蔚来汽车有限公司 | The vehicle-mounted end charging device of electric automobile, electric automobile |
| CN107117059B (en) * | 2017-06-05 | 2020-10-23 | 上海蔚来汽车有限公司 | Vehicle-mounted end charging device of electric automobile and electric automobile |
| CN107542692A (en) * | 2017-09-30 | 2018-01-05 | 程凌军 | A kind of bladeless fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: TCL CORPORATION Free format text: FORMER OWNER: HUIZHOU TCL LIGHTING ELECTRIC APPLIANCE CO., LTD. Effective date: 20080905 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080905 Address after: Technical center, 8 floor, TCL Arts crafts emporium, No. 6 Goose Road South, Guangdong, Huizhou, China: 516001 Patentee after: TCL Group Co., Ltd. Address before: Guangdong city of Huizhou province Huihuan Office of Zhongkai road three road 26, zip code: 516006 Patentee before: Huizhou TCL Lighting Appliance Co., Ltd. |
|
| DD01 | Delivery of document by public notice |
Addressee: TCL Group Co., Ltd. Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061018 Termination date: 20130815 |