Method of driving semiconductor switching device in non-saturated state and power supply apparatus containing such a switching device
US6381152B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Aug 30, 2000 |
| Grant date | Apr 30, 2002 |
| Priority date | — |
| Expiry date | Aug 30, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H11/003
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power supply apparatus includes a semiconductor switching device for outputting power and a control circuit for controlling the on/off operation of the semiconductor switching device. The control circuit includes a circuit for applying, when turning on the semiconductor switching device, a first control signal corresponding to the difference between the output voltage of the power supply apparatus and a first reference value to the semiconductor switching device in accordance with the increase in the output voltage from the power supply apparatus thereby to operate the semiconductor switching device in a non-saturated area, so that the semiconductor switching device is turned on gradually.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.