Power factor correction device simultaneously applying two trigger schemes
US8525501B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 10, 2011 |
| Grant date | Sep 3, 2013 |
| Priority date | — |
| Expiry date | Nov 27, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F1/70
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A power factor correction device includes a rectifier for converting an AC input voltage into a DC input voltage, an output module for generating and outputting a DC output voltage, an intermediate inductor coupled between the rectifier and the output module, a power switch for controlling an inductor current of the intermediate inductor and generating a source voltage, a reset module for generating a reset instruction according to the DC input voltage, the DC output voltage and the source voltage, an SR flip-flop for outputting a latch result according to a set instruction and the reset instruction, and a set module for generating the set instruction in response to variation of the intermediate inductor or variation of the latch result.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.