Driver circuit, corresponding device and method of operation
US11476845B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 22, 2021 |
| Grant date | Oct 18, 2022 |
| Priority date | — |
| Expiry date | Jun 22, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2217/0081
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A circuit comprises first and second input supply nodes configured to receive a supply voltage therebetween. The circuit comprises a high-side driver circuit configured to be coupled to a high-side switch and produce a first signal between first and second high-side output nodes. The circuit comprises a low-side driver circuit configured to be coupled to a low-side switch and produce a second signal between first and second low-side output nodes. The circuit comprises a floating node configured to receive a floating voltage applied between the floating node and the second high-side output node, a bootstrap diode between the first input supply node and an intermediate node, and a current limiter circuit between the intermediate node and the floating node and configured to sense the floating voltage and counter a current flow from the intermediate node to the floating node as a result of the floating voltage reaching a threshold value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.