Power factor correction circuit and driving method thereof
US8213135B2 · kind B2 · utility
6Cited by
3References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 2, 2009 |
| Grant date | Jul 3, 2012 |
| Priority date | — |
| Expiry date | Jul 27, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a set protection circuit for when a diode short-circuit defect occurs in a power factor correction circuit of a critical conduction mode. In a conventional power factor correction circuit, an excessive amount of current flows to a switch if a diode is short-circuited so that the switch is damaged. In order to prevent damage to the switch, the present invention provides a method for stopping turn-on of the switch when a switch current is excessive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.