Power conversion apparatus
US9906161B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 29, 2017 |
| Grant date | Feb 27, 2018 |
| Priority date | — |
| Expiry date | Jun 29, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power conversion apparatus including a transformer, a synchronous rectification (SR) transistor and a SR controller is provided. The SR transistor is coupled between a secondary side of the transformer and an output terminal. The SR controller receives a cross voltage between a drain terminal and a source terminal of the SR transistor as a first detection signal. The SR controller obtains a first time length according to a voltage value of the first detection signal, a voltage value of a first trigger signal and a voltage value of a second trigger signal. The SR controller determines a time point to turn off the SR transistor according to the first time length.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.