Undervoltage protection and control circuit for electronic switches
US11831148B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 2, 2021 |
| Grant date | Nov 28, 2023 |
| Priority date | — |
| Expiry date | Apr 2, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H3/243
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for operating an electronic switch is described hereinafter. According to one exemplary embodiment, the method (for an electronic switch in the switched on state) comprises detecting whether there is an undervoltage condition at a supply voltage node and providing an undervoltage signal which indicates an undervoltage condition. The method further comprises switching off the electronic switch if the undervoltage signal indicates an undervoltage condition and switching (back) on the electronic switch if the undervoltage signal no longer indicates an undervoltage condition. If the undervoltage signal indicates an undervoltage condition during a switch-on process of the electronic switch, the electronic switch is switched off again and switching back on is prevented for a defined period of time, irrespective of the undervoltage signal. Moreover, a corresponding circuit is described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.