System and method for monitoring the operation of a power converter
US6396674B1 · kind B1 · utility
5Cited by
6References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 11, 2000 |
| Grant date | May 28, 2002 |
| Priority date | — |
| Expiry date | Apr 11, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H7/1225
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A fault detection circuit and method for monitoring a power converter system to identify faults. The detection circuit includes two comparator circuits each having one input connected to the dc bus of the power converter system and responsive to the voltage spikes that occur as a result of faults. The other inputs of the comparator circuits are respectively connected to first and second sources of reference voltages having preset limits. The outputs of the two comparator circuits are combined on an output lead, and a fault signal will be produced on the output lead when the voltage spike on the dc bus exceeds the limits.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.