Driving device for semiconductor switching element and control system for power converter
US10081253B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 1, 2016 |
| Grant date | Sep 25, 2018 |
| Priority date | — |
| Expiry date | Feb 1, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/70
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
In a driving device for changing a semiconductor switching element, having an on-off control terminal, between an on state and an off state according to a power supply voltage input thereto, a constant-current driver generates a constant current based on the power supply voltage. The constant-current driver performs one of charging and discharging of the on-off control terminal of the semiconductor switching element based on the generated constant current so as to change the semiconductor switching element from one of the on state and off state to the other thereof. A rate varying unit adjusts, based on correlation information between the power supply voltage and the constant current, a value of the constant current so as to vary a rate of changing the semiconductor switching element from one of the on state and the off state to the other thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.