Apparatus and method for providing power isolation between a power input and a protected switch
US11595041B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 28, 2021 |
| Grant date | Feb 28, 2023 |
| Priority date | — |
| Expiry date | Sep 28, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/6874
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
There is provided an apparatus and method, the apparatus comprising a power input and a switch isolation circuit to provide isolation between the power input and a protected switch responsive to a timing signal. The switch isolation circuit comprises a switch isolation charge store, and a buffer circuit to receive power from the switch isolation charge store and coupled between the timing signal and the protected switch. The switch isolation circuit is configured to, in response to the timing signal having the first value, operate in a powered mode in which the switch isolation charge store receives power from the power input; and, in response to the timing signal having the second value, operate in an isolation mode in which the switch isolation charge store is isolated from the power input.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.