CN1290120A - Reactive power factor correcting network - Google Patents
Reactive power factor correcting network Download PDFInfo
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- CN1290120A CN1290120A CN 00126614 CN00126614A CN1290120A CN 1290120 A CN1290120 A CN 1290120A CN 00126614 CN00126614 CN 00126614 CN 00126614 A CN00126614 A CN 00126614A CN 1290120 A CN1290120 A CN 1290120A
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- negative pole
- power factor
- reactive power
- anodal
- capacitor
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Abstract
A reactive power facture correcting network is composed of 5 high-frequency rectifying diodes, 4 capacitor (1000 pf-1uf), and 2 electrolytic capacitor (4.7 uf-100 uf), and is combined with electric ballast and filter to form bidirectional self-supply auxiliary power supply type circuit and high-frequency energy feedback circuit. It can make electronic ballast work in constant input current state with the power factor up to 0.95, input current harmonic content less than 25% and lamp current peak rate less than 1.7.
Description
The present invention relates to a kind of reactive power factor correcting network that is used for electric ballast.
In the prior art, be used for the reactive power factor correcting network circuit of electric ballast, mainly contain two classes: a class is two-way confession accessory power supply formula circuit, claims " double pump formula " circuit usually, another kind of is high-frequency energy reaction type circuit, claims " high pump formula " circuit again.The former, power factor only can reach about 0.92, and input harmonics content can only reach " H " level level of GB/T15144-94 standard code, does not meet the electromagnetic compatibility harmonic content requirement of IEC6100-3-2 regulation; The latter is higher owing to the circuit VD, and fluctuates widely with the fluctuation of input voltage power supply, easily causes electric ballast overall work reliability variation.
Purpose of the present invention is that a kind of High Power Factor will be provided, and low Harmonics of Input can be improved lamp current crest ratio, the reactive power factor correcting network that functional reliability is high.
Below in conjunction with drawings and Examples, introduce technical scheme of the present invention.
Fig. 1 is a circuit diagram of the present invention.
With reference to accompanying drawing, by input electromagnetic interface filter 1, AC/DC bridge rectifier 2, reactive power factor correcting network 3, in the electronics fluorescent lamp that DC/AC high-frequency generator 4 and fluorescent lamp 5 are formed, electronic devices and components annexation in the network 3 is: the positive pole of diode D1 and capacitor C 6, C1 and bridge rectifier 2 anodal 6 are electrically connected, the negative pole of D1 and D4 negative pole, C3, electrochemical capacitor C5 pin 9 anodal and high-frequency generator 4 is electrically connected, anodal and the D3 negative pole of D4, electrochemical capacitor C4 positive electrical connects, anodal and the C6 other end of D3, the D2 negative pole, C2, C3, the pin 10 of high-frequency generator 4 and fluorescent lamp 5 are electrically connected, anodal and the D5 negative pole of D2, the C5 negative electricity connects, the C1 and the C2 other end, the D5 positive pole, C4 negative pole and bridge rectifier 2 negative poles 7, high-frequency generator 4 pin 8 are electrically connected.
Diode D1, D2, D3, D4, D5 adopt withstand voltage high-frequency rectification diode greater than 100V.The range of capacity of capacitor C 1, C2, C3, C6 is 1000Pf-1 μ f, and is withstand voltage greater than 50V, and the range of capacity of electrochemical capacitor C4, C5 is 4.7 μ F-100 μ F, and is withstand voltage greater than 50V.
The present invention combines with input filter, bridge rectifier, reactive power factor correcting network, high-frequency generator and fluorescent lamp, make electric ballast energy steady operation in permanent input current situation, simultaneously can improve input power factor effectively again, reduce Harmonics of Input content, improve lamp current crest ratio.Use all kinds of 15-120W electronic ballast for fluoresent lamps of the present invention's assembling, its input power factor is greater than 0.95, the Harmonics of Input total content is less than 25%, each subharmonic can reach GB/T15144-94 standard code " L " level level, meet an IEC6100-3-2 standard fixed electromagnetic compatibility harmonic requirement, lamp current crest ratio is less than 1.7.
Claims (2)
1, a kind of reactive power factor correcting network, it is characterized in that the electronic devices and components annexation in the network (3) is: the positive pole of diode D1 and capacitor C 6, C1 and bridge rectifier (2) anodal (6) are electrically connected, the negative pole of D1 and D4 negative pole, C3, electrochemical capacitor C5 pin (9) anodal and high-frequency generator (4) is electrically connected, anodal and the D3 negative pole of D4, electrochemical capacitor C4 positive electrical connects, anodal and the C6 other end of D3, the D2 negative pole, C2, C3, the pin (10) of high-frequency generator (4) and fluorescent lamp (5) are electrically connected, anodal and the D5 negative pole of D2, the C5 negative electricity connects, the C1 and the C2 other end, the D5 positive pole, C4 negative pole and bridge rectifier (2) negative pole (7), high-frequency generator (4) pin (8) is electrically connected.
2, by the described reactive power factor correcting network of claim 1, it is characterized in that: diode D1, D2, D3, D4, D5 adopt withstand voltage high-frequency rectification diode greater than 100V; The range of capacity of capacitor C 1, C2, C3, C6 is 1000Pf-1 μ f, and is withstand voltage greater than 50V, and the range of capacity of electrochemical capacitor C4, C5 is 4.7 μ F, one 100 μ F, and is withstand voltage greater than 50V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00126614 CN1125581C (en) | 2000-10-08 | 2000-10-08 | Reactive power factor correcting network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00126614 CN1125581C (en) | 2000-10-08 | 2000-10-08 | Reactive power factor correcting network |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1290120A true CN1290120A (en) | 2001-04-04 |
| CN1125581C CN1125581C (en) | 2003-10-22 |
Family
ID=4591921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00126614 Expired - Fee Related CN1125581C (en) | 2000-10-08 | 2000-10-08 | Reactive power factor correcting network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1125581C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1298197C (en) * | 2001-09-14 | 2007-01-31 | 明基电通股份有限公司 | Power factor correcting unit with electronic ballast function |
| CN1753594B (en) * | 2005-10-27 | 2010-12-15 | 东阳得邦照明有限公司 | Electron ballast passive power factor correcting circuit |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2847675Y (en) * | 2005-09-29 | 2006-12-13 | 史俊生 | Passive power factor correcting circuit |
-
2000
- 2000-10-08 CN CN 00126614 patent/CN1125581C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1298197C (en) * | 2001-09-14 | 2007-01-31 | 明基电通股份有限公司 | Power factor correcting unit with electronic ballast function |
| CN1753594B (en) * | 2005-10-27 | 2010-12-15 | 东阳得邦照明有限公司 | Electron ballast passive power factor correcting circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1125581C (en) | 2003-10-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| AR01 | Abandonment of patent right to avoid double patenting |
According to article 9 of the patent law and article 13 of the detailed rules for the implementation of the patent law: 126614.4 of the invention patents in this issue as a notice of authorization, and at the same time corresponding to the 225721.1 utility model patent to be given up, and in the 19 volume of the 43 issue of the new type of communique on the patent right to abandon the announcement. |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |