CN201018703Y - Improved electronic ballast for power factor correcting circuit - Google Patents
Improved electronic ballast for power factor correcting circuit Download PDFInfo
- Publication number
- CN201018703Y CN201018703Y CNU2007200194515U CN200720019451U CN201018703Y CN 201018703 Y CN201018703 Y CN 201018703Y CN U2007200194515 U CNU2007200194515 U CN U2007200194515U CN 200720019451 U CN200720019451 U CN 200720019451U CN 201018703 Y CN201018703 Y CN 201018703Y
- Authority
- CN
- China
- Prior art keywords
- circuit
- power factor
- diode
- high frequency
- capacitor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Rectifiers (AREA)
- Circuit Arrangements For Discharge Lamps (AREA)
Abstract
The utility model relates to a electronic ballast improved by the power factor calibrating circuit. The utility model comprises an EM I electrical filter, a bridge rectifier and a high frequency oscillator. The power factor calibrating circuit is provides between the output end of the bridge rectifier and input end of the high frequency oscillator. The power factor calibrating circuit is formed by the connection between a high frequency back streaming style passive PFC circuit and a coupling junction circuit .The passive PFC circuit is formed by the connection between the diode D3 to D6 and the electric capacity C3 to C6, and the coupling junction circuit is formed by the connection between the electric capacity C1, C2 and the diode D1, D2. When the electric capacity C5, C6 discharges to the high frequency oscillator through D3, D6, the angle of flow of the diode of the rectifier is augmenting, the content of the overtone of the input current flow is falling, and the power factor is sublimating. When the luminous tube is discharged, C5 and C6 are of parallel connection. The numerical constant of the discharging time is enlarged. The amplitude of fluctuation of the output voltage of the rectifier is reduced. The ratio of the wave of the luminous tube current is decreased. After the work is stable, part of the high frequency current generates two plus minus boost voltage through rectifying and filtering by D4, D5, C5, C6. The boost voltage is provided as the service voltage of the high frequency oscillator, and the wastage is decreased.
Description
Technical field
The utility model relates to electric ballast, the electric ballast that especially a kind of circuit of power factor correction simple in structure, that cost performance is good is improved.
Background technology
Present electronic energy-saving lamp industry, electric ballast is owing to adopt HF switch and the rectification operation, there are shortcomings such as source harmonic distortion is big, power factor is low, and when large quantities of electric ballasts are worked simultaneously, high-frequency harmonic can make power supply center line substantial deviation zero potential, introduce great peak current simultaneously, seriously disturb grid supply quality; Thereby the crest that improves electric ballast is than, total harmonic distortion and power factor, thereby improve the reliability and the applicability of energy-saving lamp circuit work, and consider to seek best technical solution from performance index such as the cost control of product circuit and power factor, possibility, current wave crest ratio and the requirements of vigour part deviate, to reach reasonable cost performance, be the need that promote product market competitiveness.
The utility model content
Be the low problem of power factor that solves above-mentioned energy-saving lamp electronic ballast, the electric ballast of the circuit of power factor correction improvement that this novel proposition cost performance is good.
The technical scheme in the invention for solving the above technical problem is: the electric ballast of circuit of power factor correction improvement, contain electromagnetic interface filter, bridge rectifier and high-frequency generator, it is characterized in that: be provided with circuit of power factor correction between the input of the output of bridge rectifier and high-frequency generator, the high frequency that circuit of power factor correction is connected into by diode D3～D6, the capacitor C 3～C6 circuit that is of coupled connections that rechargeable passive pfc circuit, capacitor C 1, C2 and diode D1, D2 be connected in parallel respectively that backflows connects to form.
The current follow-up circuit that the capacitor C 3, C4 that the circuit of power factor correction positive and negative polarities are parallel with series connection respectively is formed by connecting every straight filter noise cancellation circuit, by diode D3～D6 and electrochemical capacitor C5, C6 series-parallel connection; Common point connection between common point and diode D4, the D5 between capacitor C 3, the C4; Connect current follow-up circuit every straight filter noise cancellation circuit through the circuit that is of coupled connections and form the feed loop.
The beneficial effects of the utility model are: current follow-up circuit electrochemical capacitor C5, C6 discharge to high-frequency generator through diode D3, D6, and the diode current flow angle of rectifier increases, Harmonics of Input content descends, the line power factor improves; When tube load is discharged, C5, C6 be relation in parallel, discharge time constant increases, and has reduced rectifier output voltage fluctuating range, reduces the crest ratio of lamp current; After circuit enters steady operation, behind a high-frequency current part process D4, D5, C5, the C6 rectifying and wave-filtering, produce positive and negative two boost voltages, and respectively by the stack of the 100HZ pulsating direct current after D3, D6 and the full-wave rectification, formed the supply power voltage of the less direct voltage of ripple, reduced loss as high-frequency generator.
Description of drawings
Fig. 1 connects the enforcement figure of energy-saving lamp tube circuit for the utility model.
Among the figure: the 1.EMI filter; 2. bridge rectifier; 3. circuit of power factor correction; 4. high-frequency generator; 5. tube load.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
The electric ballast of circuit of power factor correction 3 improvement as shown in Figure 1, the bridge rectifier 2 and the high-frequency generator 4 that contain electromagnetic interface filter 1, diode D7～D10 composition, be provided with circuit of power factor correction 3 between the input of the output of bridge rectifier 2 and high-frequency generator 4, the high frequency that circuit of power factor correction 3 is connected into by diode D3～D6, the capacitor C 3～C6 circuit that is of coupled connections that rechargeable passive pfc circuit, capacitor C 1, C2 and diode D1, D2 be connected in parallel respectively that backflows connects to form.The current follow-up circuit that the capacitor C 3, C4 that circuit of power factor correction 3 positive and negative polarities are parallel with series connection respectively is formed by connecting every straight filter noise cancellation circuit, by diode D3～D6 and electrochemical capacitor C5, C6 series-parallel connection; Common point connection between common point and diode D4, the D5 between capacitor C 3, the C4; Connect current follow-up circuit every straight filter noise cancellation circuit through the circuit that is of coupled connections and form the feed loop.The utility model high-frequency generator one end connects a lamp base of tube load 5, and the lamp pin of the correspondence of the tube load other end connects common point between capacitor C 3, the C4.The utility model is so work, and the D1 in the circuit, D2, C1, C2 play buffer action and in each half period, the time that the AC AC-input voltage is higher than output dc voltage VDC2 is elongated, and enlarges the angle of flow of diode bridge rectifier 2.Capacitor C 5, C6 were recharged when circuit was higher than node VDC2 at node VDC1 voltage, capacitor C 5 during charging in the circuit, C6 are series relationship, enlarged the angle of flow of the diode in the bridge rectifier 2, the AC input current is tending towards continuously, and totally keeps sinusoidal waveform, and the line power factor is improved, input current harmonics content descends, the total harmonic wave of input current≤25%, power factor 〉=0.95 can reduce the loss of reactive power in the supply line.In this circuit when some VDC2 voltage is higher than a some VDC1 C5, C6 by D3, D6 to high-frequency generator 4 discharges, capacitor C 5, C6 are when tube load 5 discharges, capacitor C 5, C6 are for conversion into relation in parallel, discharge time constant is increased, reduced the amplitude of rectifier output voltage fluctuation, reduced the crest ratio of lamp current, the utility model lamp current crest is than≤1.8, but 5 life-spans of prolonging lamp tube load.Circuit is after the lamp startup enters steady operation, a high-frequency current part turns back to power supply through C3, C4, behind another part process D4, D5, C5, the C6 rectifying and wave-filtering, produce positive and negative two boost voltages, and respectively by the stack of the 100HZ pulsating direct current after D3, D6 and the full-wave rectification, formed the supply power voltage of the less direct voltage of ripple, reduced loss as high-frequency generator 4.
Claims (2)
1. the electric ballast of circuit of power factor correction improvement, contain electromagnetic interface filter, bridge rectifier and high-frequency generator, it is characterized in that: be provided with circuit of power factor correction between the input of the output of bridge rectifier and high-frequency generator, the high frequency that circuit of power factor correction is connected into by diode D3～D6, the capacitor C 3～C6 circuit that is of coupled connections that rechargeable passive pfc circuit, capacitor C 1, C2 and diode D1, D2 be connected in parallel respectively that backflows connects to form.
2. the electric ballast of circuit of power factor correction according to claim 1 improvement is characterized in that: the current follow-up circuit that the capacitor C 3, C4 that the circuit of power factor correction positive and negative polarities are parallel with series connection respectively is formed by connecting every straight filter noise cancellation circuit, by diode D3～D6 and electrochemical capacitor C5, C6 series-parallel connection; Common point connection between common point and diode D4, the D5 between capacitor C 3, the C4; Connect current follow-up circuit every straight filter noise cancellation circuit through the circuit that is of coupled connections and form the feed loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200194515U CN201018703Y (en) | 2007-03-13 | 2007-03-13 | Improved electronic ballast for power factor correcting circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200194515U CN201018703Y (en) | 2007-03-13 | 2007-03-13 | Improved electronic ballast for power factor correcting circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201018703Y true CN201018703Y (en) | 2008-02-06 |
Family
ID=39059206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200194515U Expired - Lifetime CN201018703Y (en) | 2007-03-13 | 2007-03-13 | Improved electronic ballast for power factor correcting circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201018703Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101848584A (en) * | 2010-06-01 | 2010-09-29 | 杭州意博高科电器有限公司 | 230V passive high-power factor circuit |
| CN101707841B (en) * | 2009-11-03 | 2013-09-04 | 海洋王照明科技股份有限公司 | Electronic ballast and fluorescent lamp device |
-
2007
- 2007-03-13 CN CNU2007200194515U patent/CN201018703Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101707841B (en) * | 2009-11-03 | 2013-09-04 | 海洋王照明科技股份有限公司 | Electronic ballast and fluorescent lamp device |
| CN101848584A (en) * | 2010-06-01 | 2010-09-29 | 杭州意博高科电器有限公司 | 230V passive high-power factor circuit |
| CN101848584B (en) * | 2010-06-01 | 2012-12-19 | 杭州意博高科电器有限公司 | 230V passive high-power factor circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101834539B (en) | High-efficiency AC/DC combined converter with wide output voltage range | |
| CN201435845Y (en) | LED lamp circuit with high power factor | |
| CN105871194A (en) | Step-down Cuk/Flyback single-stage low-ripple-wave LED drive circuit based on flyback converter auxiliary winding | |
| CN101540507B (en) | Compensating three-phase active power factor correcting circuit | |
| CN113489308B (en) | Step-down power factor correction converter without input current dead zone and control method | |
| CN103683952B (en) | A kind of integration in parallel connection formula Buck-Flyback power factor correction pfc converter topology | |
| CN102780409A (en) | Unity-power-factor buck-boost circuit | |
| CN201018703Y (en) | Improved electronic ballast for power factor correcting circuit | |
| Grigore et al. | A step-down converter with low ripple input current for power factor correction | |
| CN102769394A (en) | Single-phase controllable rectification circuit | |
| CN113765359B (en) | Multi-unit parallel integrated buck bridgeless PFC converter | |
| CN101883464B (en) | Current follow-up passive factor correction circuit and electronic ballast starting circuit | |
| CN204967611U (en) | Compound high -efficient power factor correction circuit | |
| CN209001824U (en) | The passive power factor correcting circuit of LED illumination power supply | |
| CN211046756U (en) | PFC circuit | |
| CN1437310A (en) | Great-power switching voltage regulator with no electromagnetic pollution | |
| CN112689363A (en) | Power converter | |
| CN2847675Y (en) | Passive power factor correcting circuit | |
| CN2689562Y (en) | PFC circuit with harmonic inhibiting function | |
| CN1386040A (en) | Low-harmonic compact type energy-saving lamp electronic ballast | |
| CN204205933U (en) | Based on critical conduction mode pfc circuit | |
| CN211183825U (en) | High-power-factor AC/DC converter of symmetrical charge pump | |
| CN202455263U (en) | High power factor switch power supply | |
| CN202535620U (en) | Electronic ballast for high-pressure sodium lamp | |
| CN218850621U (en) | PFC switching circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Leedarson Lighting (Xiamen) Co., Ltd. Assignor: Li Jianghuai Contract fulfillment period: 2008.9.1 to 2013.8.31 Contract record no.: 2008351000071 Denomination of utility model: Improved electronic ballast for power factor correcting circuit Granted publication date: 20080206 License type: Exclusive license Record date: 20081210 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.9.1 TO 2013.8.31; CHANGE OF CONTRACT Name of requester: XIAMEN LI TEXTRON OPTO-ELECTRICAL CO., LTD. Effective date: 20081210 |
|
| ASS | Succession or assignment of patent right |
Owner name: ZHANGZHOU LEEDARSON GREEN LIGHTING CO., LTD. Free format text: FORMER OWNER: LI JIANGHUAI Effective date: 20120530 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 361004 XIAMEN, FUJIAN PROVINCE TO: 363999 ZHANGZHOU, FUJIAN PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20120530 Address after: 363999 Xingda Road, Fujian city of Zhangzhou province Changtai Xingtai County Development Zone Patentee after: Zhangzhou Lidaxin Green Lighting Co.,Ltd. Address before: Xiamen City, Fujian province 361004 Wo Road, Siming District of Xiamen No. 862, Jinshan building 6 floor B block Patentee before: Li Jianghuai |
|
| C56 | Change in the name or address of the patentee |
Owner name: LEEDERSON GREEN LIGHTING CO., LTD. Free format text: FORMER NAME: ZHANGZHOU LEEDARSON GREEN LIGHTING CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 363999 Xingda Road, Fujian city of Zhangzhou province Changtai Xingtai County Development Zone Patentee after: Leedarson Green Lighting Co., Ltd. Address before: 363999 Xingda Road, Fujian city of Zhangzhou province Changtai Xingtai County Development Zone Patentee before: Zhangzhou Lidaxin Green Lighting Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20080206 |
|
| CX01 | Expiry of patent term |