Gate drive apparatus and control method for switched capacitor converter
US11482919B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 22, 2021 |
| Grant date | Oct 25, 2022 |
| Priority date | — |
| Expiry date | Jul 7, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2217/0018
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An apparatus includes a first gate drive transistor and a second gate drive transistor connected in series, a common node of the first gate drive transistor and the second gate drive transistor connected to a gate of a power switch, the second gate drive transistor configured as a bulk switch having a bulk terminal connected to a bulk terminal of the power switch, a first auxiliary transistor connected between the bulk terminal and a source of the power switch, a second auxiliary transistor coupled between the gate of the power switch and a system ground, and a third auxiliary transistor coupled between a logic control ground and the system ground, wherein the second auxiliary transistor and the third auxiliary transistor are configured to pull the gate of the power switch and the logic control ground down to the system ground in response to a turn off of the apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.