Electric-power conversion apparatus
US11264889B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2020 |
| Grant date | Mar 1, 2022 |
| Priority date | — |
| Expiry date | May 12, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/327
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
There is provided an electric-power conversion apparatus that can protect semiconductor switching devices in accordance with the ambient temperature. The electric-power conversion apparatus includes a comparator that generates an output based on a comparison between the output of a sensor and a threshold value, a reference voltage circuit that produces the threshold value, and a control circuit that is configured in such a way as to be able to stop operation of a main circuit, based on the output of the comparator; the reference voltage circuit is configured in such a way as to change the threshold value in accordance with an ambient temperature under which semiconductor switching devices are laid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.