Active clamp circuit for power semiconductor switch and power converter using the same
US10234880B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 18, 2018 |
| Grant date | Mar 19, 2019 |
| Priority date | — |
| Expiry date | Jul 18, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present disclosure discloses an active clamp circuit for a power semiconductor switch and a power converter using the same. The active clamp circuit includes: a discharging circuit, a first terminal of the discharging circuit being electrically connected to a collector of the power semiconductor switch; an unidirectional blocking circuit; a first voltage regulator diode connected in series with the unidirectional blocking circuit to form a series branch, a first terminal of the series branch being electrically connected to the collector of the power semiconductor switch; and a resistance-capacitance RC circuit, a first terminal of the RC circuit, a second terminal of the discharging circuit, and a second terminal of the serial circuit being electrically connected, a second terminal of the RC circuit being electrically coupled to a gate of the power semiconductor switch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.