Drive adjustment circuit for power semiconductor element, power module, and power conversion device
US12334807B2 · kind B2 · utility
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19Claims
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Key dates
| Filing date | Jul 14, 2020 |
| Grant date | Jun 17, 2025 |
| Priority date | — |
| Expiry date | Mar 2, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M7/5387
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A drive adjustment circuit for a power semiconductor element includes a differentiating circuit to differentiate a gate voltage of a power semiconductor element, a power supply to generate a comparison reference voltage, a comparator having a first input terminal connected to the differentiating circuit and a second input terminal receiving the comparison reference voltage, and a voltage adjusting circuit to adjust a gate voltage of the power semiconductor element based on an output of the comparator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.