TW200627121A - Digital control of bridgeless power factor correction circuit - Google Patents
Digital control of bridgeless power factor correction circuitInfo
- Publication number
- TW200627121A TW200627121A TW094139124A TW94139124A TW200627121A TW 200627121 A TW200627121 A TW 200627121A TW 094139124 A TW094139124 A TW 094139124A TW 94139124 A TW94139124 A TW 94139124A TW 200627121 A TW200627121 A TW 200627121A
- Authority
- TW
- Taiwan
- Prior art keywords
- voltage
- polar
- power factor
- factor correction
- uni
- Prior art date
Links
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- Rectifiers (AREA)
Abstract
A circuit for providing power factor correction includes a bridgeless boost converter circuit and a control circuit receiving an input AC line voltage of the bridgeless boost converter circuit, wherein the control circuit provides a pulse width modulated signal to control the on time of a PFC switch of the bridgeless boost converter circuit. The control circuit also includes a scaling device operable to scale down a bi-polar AC voltage of the input AC line voltage to a uni-polar AC voltage, an analog to digital converter operable to convert the uni-polar AC voltage into digital data and a digital rectifier operable to process the digital data of the uni-polar AC voltage to provide a half-sinusoidal AC signal that is proportional to and in phase with the input AC line voltage for use in providing the pulse width modulated signal.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US62611704P | 2004-11-08 | 2004-11-08 | |
| US67554105P | 2005-04-28 | 2005-04-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW200627121A true TW200627121A (en) | 2006-08-01 |
| TWI303757B TWI303757B (en) | 2008-12-01 |
Family
ID=45070784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW94139124A TWI303757B (en) | 2004-11-08 | 2005-11-08 | Digital control of bridgeless power factor correction circuit |
Country Status (1)
| Country | Link |
|---|---|
| TW (1) | TWI303757B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103052886A (en) * | 2010-07-28 | 2013-04-17 | 马维尔国际贸易有限公司 | Method and apparatus for wave detection |
| TWI408884B (en) * | 2010-07-08 | 2013-09-11 | Sitronix Technology Corp | Power factor correction device |
| TWI468698B (en) * | 2008-07-25 | 2015-01-11 | Cirrus Logic Inc | Current sensing in a switching power converter |
| CN108667323A (en) * | 2018-06-25 | 2018-10-16 | 广州金升阳科技有限公司 | Alternating current-direct current input adaptive switching power circuit |
-
2005
- 2005-11-08 TW TW94139124A patent/TWI303757B/en not_active IP Right Cessation
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI468698B (en) * | 2008-07-25 | 2015-01-11 | Cirrus Logic Inc | Current sensing in a switching power converter |
| TWI408884B (en) * | 2010-07-08 | 2013-09-11 | Sitronix Technology Corp | Power factor correction device |
| CN103052886A (en) * | 2010-07-28 | 2013-04-17 | 马维尔国际贸易有限公司 | Method and apparatus for wave detection |
| CN103052886B (en) * | 2010-07-28 | 2016-01-20 | 马维尔国际贸易有限公司 | Sine wave for the rectification of power factor correction circuit detects |
| CN108667323A (en) * | 2018-06-25 | 2018-10-16 | 广州金升阳科技有限公司 | Alternating current-direct current input adaptive switching power circuit |
| CN108667323B (en) * | 2018-06-25 | 2024-05-17 | 广州金升阳科技有限公司 | AC/DC input self-adaptive switch power supply circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI303757B (en) | 2008-12-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM4A | Annulment or lapse of patent due to non-payment of fees |