Apparatus for driving voltage controlled switching elements
US8680896B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 28, 2011 |
| Grant date | Mar 25, 2014 |
| Priority date | — |
| Expiry date | Oct 28, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M7/5387
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An apparatus is provided to drive a voltage controlled switching element having a conduction control terminal. In the apparatus, it is determined whether or not voltage at the conduction control terminal is at a first voltage which is lower than a second voltage and which is equal to or more than a threshold voltage. The second voltage is a voltage provided when the switching element is in a normal on-state thereof. The threshold voltage is voltage at which the switching element is switched on. When it is determined that the voltage at the conduction control terminal is at the first voltage, the switching element is forcibly switched off.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.