Dynamic IGBT gate drive to reduce switching loss
US10071634B2 · kind B2 · utility
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10Claims
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Key dates
| Filing date | Mar 22, 2016 |
| Grant date | Sep 11, 2018 |
| Priority date | — |
| Expiry date | Jul 3, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T90/14
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A vehicle powertrain includes an IGBT that conducts current between a supply and load. The vehicle powertrain also includes a controller that applies voltage to a gate of the IGBT at a first level for a first duration that depends on a capacitance of the gate, and increases the voltage over a second duration based on a rate of change of the current falling below a threshold defined by a supply voltage for the load.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.