Synchronous rectification circuit having burst mode controller and controlling method thereof
US8031489B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2009 |
| Grant date | Oct 4, 2011 |
| Priority date | — |
| Expiry date | Apr 14, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The configuration of a synchronous rectification circuit and a controlling method thereof are provided. The proposed circuit includes a converter including a first switch and a first synchronous rectifier, and a burst mode controller including a logic process module performing one of functions of delaying one of a non-integer and at least one operating periods to generate a synchronous rectification driving signal of the first synchronous rectifier counting from a beginning of a first pulse of a driving signal of the first switch during a working time of a burst period, and turning off the synchronous rectification driving signal of the first synchronous rectifier by one of the non-integer operating period and the at least one operating period ahead of an ending of a last operating period of the driving signal of the first switch during the working time of the burst period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.