Multiphase soft-switched DC-DC converter
US8908401B2 · kind B2 · utility
9Cited by
10References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 22, 2008 |
| Grant date | Dec 9, 2014 |
| Priority date | — |
| Expiry date | Apr 26, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/1586
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A high-frequency DC to DC converter comprising n transient converter circuits (1, 2 . . . n) operating in parallel. The converter has constant transfer characteristics, and the transient converter circuits are operated phase-shifted by 360°/n and with interleaved duty cycles, which results in a continuous energy transfer through the circuit. The circuit is also soft-switched, with very low switching losses. In particular, the active semiconductors only switch off a relatively small magnetization current, during a recovery phase which can last as long as (n−1)/n of the switching phase period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.