Over current sensing scheme for switch applications
US11362504B2 · kind B2 · utility
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18References
20Claims
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Key dates
| Filing date | Jul 20, 2020 |
| Grant date | Jun 14, 2022 |
| Priority date | — |
| Expiry date | Jul 20, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2217/0027
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Circuits and methods for protecting against over-current conditions of switches are described. Over-current conditions can damage switches and the circuits they connect. Some embodiments of the present application provide a sense switch in parallel with the load switch. The sense switch is smaller than the load switch, and is used to sense an over-current condition of the load switch. The sense switch can remain on even when the load switch is turned off in response to detection of an over-current condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.