Gate drive circuit and associated method
US8471604B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 19, 2012 |
| Grant date | Jun 25, 2013 |
| Priority date | — |
| Expiry date | Apr 19, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M7/49
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method of driving a number of series connected active power semiconductor groups, wherein each of the active power semiconductor groups includes one or more gate oxide-isolated active power semiconductor devices. The method includes generating a current pulse, providing the current pulse to a primary portion of a transformer unit and in response thereto causing a number of reflected current pulses to be reflected at a secondary portion of the transformer unit, and transferring and latching each of the reflected current pulses to create a respective latched gate drive signal, and providing each respective latched gate drive signal to an associated one of the active power semiconductor groups for driving the one or more gate oxide-isolated active power semiconductor devices of the associated one of the active power semiconductor groups. Also, a gate drive circuit that implements the method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.