Over voltage protection for cascode switching power device
US10243551B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 6, 2017 |
| Grant date | Mar 26, 2019 |
| Priority date | — |
| Expiry date | Sep 6, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/158
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Aspects of the present disclosure disclose a power semiconductor device coupled to a load operable to draw a load current comprising a power switch having a first terminal coupled to the load and a controller coupled to a control terminal of the power switch. The controller comprises a gate driving circuit configured to provide control of the control terminal of the power switch during normal switching operations; an overvoltage detection circuit configured to detect an overvoltage event occurring at the first terminal of the power switch; and an overvoltage protection circuit configured to provide control of the control terminal of the power switch during detection of the overvoltage event.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.