Power circuit switching device having a passive protection circuit
US11101791B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 22, 2017 |
| Grant date | Aug 24, 2021 |
| Priority date | — |
| Expiry date | Jul 23, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2217/0081
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A power circuit switching device comprises two switching terminals, a high-voltage depletion mode transistor and a low-voltage enhancement mode transistor arranged in series between the two switching terminals, a first terminal for receiving a switching signal and electrically connected via a driver circuit to the gate of the high-voltage transistor, and a second terminal for receiving a control signal and electrically connected to the gate of the low-voltage transistor. The device comprises a normally-on protection circuit electrically connected between the second terminal and the gate of the high-voltage transistor to keep the high-voltage transistor in an off-state when the driver circuit is not electrically powered.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.