Power switching circuit with current sharing capability
US7015681B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 8, 2004 |
| Grant date | Mar 21, 2006 |
| Priority date | — |
| Expiry date | Aug 17, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/088
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power switching circuit comprising a first power switching device the first power switching device having a control electrode and two main current carrying electrodes, a sense circuit for providing a signal proportional to the current through the first power switching device and an active clamp circuit connected to said control electrode of said first power switching device, wherein said active clamp circuit provides a variable clamp voltage between one of the main electrodes of the first power switching device and the control electrode when the current in the first power switching device exceeds a threshold level the variable clamp voltage being related to current through the first power switching device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.