Thermal protection of a switch
US7652864B2 · kind B2 · utility
0Cited by
7References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 29, 2007 |
| Grant date | Jan 26, 2010 |
| Priority date | — |
| Expiry date | Oct 5, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2017/0806
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method and a circuit for detecting an overheating of an electronic switch of power supply of a load by an A.C. voltage, in which a voltage representative of the temperature in the vicinity of the switch is compared with a threshold, the result of this comparison being sampled at frequency corresponding to an even multiple of the frequency of the A.C. power supply voltage, to provide a signal indicative of the fact that a temperature threshold has been exceeded.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.