Method and device for adjusting the switching speed of a MOSFET
US11817849B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 11, 2020 |
| Grant date | Nov 14, 2023 |
| Priority date | — |
| Expiry date | Aug 26, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/04106
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method and device for adjusting the switching speed of a MOSFET are disclosed. The MOSFET is connected to drive switch, the collector of the drive switch is connected to the grid of the MOSFET through the grid resistor, the emitter of the drive switch is grounded through the emitter resistor, and the collector of the drive switch is also connected to the source resistor through the collector resistor, the other end of the source resistor is connected to the source of the MOSFET; the drain of the MOSFET is connected to the current source. The method comprises: obtaining the adjustment target of the switching speed for the MOSFET, determining the first resistance value of the emitter resistor and/or the second resistance value of the collector resistor based on said adjustment target, controlling the operation of the MOSFET according to the adjusted resistance value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.