Current-sharing circuit for parallel-coupled switches and switch-mode power converter employing the same
US5909108A · kind A · utility
32Cited by
3References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 23, 1998 |
| Grant date | Jun 1, 1999 |
| Priority date | — |
| Expiry date | Feb 23, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S323/907
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
For use in a switch-mode power converter including parallel-coupled first and second switches, the first switch having a temperature-dependent resistance, a circuit for, and method of, distributing current between the first and second switches. In one embodiment, the circuit includes a device having a temperature-dependent characteristic, in thermal communication with the first switch and electrically coupled to a gate of the first switch, that senses a temperature of the first switch, modulates an amplitude of a drive waveform applied to the gate based on the temperature and thereby redistributes the current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.