Isolated switch driving circuit
US10812069B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 6, 2019 |
| Grant date | Oct 20, 2020 |
| Priority date | — |
| Expiry date | Aug 6, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2217/0081
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A switch driving circuit includes an output coil having a first end and a second end and configured to receive positive or negative pulses from an input coil and a drive portion that includes a holding capacitor coupled across the output coil. The circuit also includes a discharge circuit that includes a discharge switch connected across the output coil, the discharge circuit having a discharge resistor and a discharge capacitor connected in parallel with each other and across control terminals of the discharge switch and a shunt circuit connected across the output coil that shorts the first end to the second end after a positive pulse is received.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.