Power conversion device with protection device and method of controlling the same
US10389239B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Aug 3, 2017 |
| Grant date | Aug 20, 2019 |
| Priority date | — |
| Expiry date | Aug 3, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2017/6875
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power conversion device converting and outputting a characteristic of input power, includes: a power conversion unit including a normally-on type first switching element made of a nitride-based semiconductor material and converting the characteristic of power by a switching operation performed by the first switching element; an operation control unit controlling a switching operation of the first switching element; and an intelligent power switch including: a second switching element provided on a power input side of the power conversion unit and turning on/off power input to the power conversion unit; and a protection control unit including a current detection unit detecting a current flowing in the second switching element and controlling on/off of the second switching element and turn off the second switching element in a case where a current detected by the current detection unit exceeds a threshold value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.