Gate pre-positioning for fast turn-off of synchronous rectifier
US9991810B2 · kind B2 · utility
2Cited by
24References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 22, 2016 |
| Grant date | Jun 5, 2018 |
| Priority date | — |
| Expiry date | Nov 22, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A synchronous rectifier driver pre-positions a gate of a synchronous rectifier to allow for fast turn-off. The synchronous rectifier driver turns ON the synchronous rectifier by driving the gate at a high level for a period of time that is based on a previous conduction time of the synchronous rectifier. The synchronous rectifier driver thereafter drives the gate at a lower level that is sufficient to keep the synchronous rectifier ON. The synchronous rectifier can be quickly turned OFF by further reducing the level of the drive signal at the gate of the synchronous rectifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.