Gate driver circuit with a closed loop overdrive generator
US10819351B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | May 28, 2019 |
| Grant date | Oct 27, 2020 |
| Priority date | — |
| Expiry date | May 28, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/6872
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A driver circuit comprises a first transistor coupled to a second transistor, and a third transistor coupled to the first and second transistor and to a first current mirror. An output of the first current mirror is provided to a control input of the second transistor. A second current mirror is coupled to the output of the first current mirror. A first current source, a second current source, and a fourth transistor are coupled to the second current mirror. The second current source is further coupled to a fifth transistor. A sixth transistor is coupled to the fifth transistor and to a third current mirror. In some implementations, the driver circuit is coupled to a low side transistor in an H bridge driver and the second transistor is matched to the low side transistor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.