Monitoring a load driven by a power semiconductor switch
US7715160B2 · kind B2 · utility
4Cited by
1References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 29, 2007 |
| Grant date | May 11, 2010 |
| Priority date | — |
| Expiry date | Nov 11, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2217/0027
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method and an apparatus for monitoring a load driven by a power semiconductor switch. The method may comprise, for example: driving a control electrode of the power semiconductor switch, in such a way that a rise in the load current through the power semiconductor switch is effected after a delay time; generating a diagnostic current flowing through the load, wherein the diagnostic current brings about a voltage drop across the load before the delay time has elapsed; and evaluating the voltage drop across the load before the delay time has elapsed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.