Serial connected low-loss synchronously switchable voltage chopper
US7135847B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 16, 2004 |
| Grant date | Nov 14, 2006 |
| Priority date | — |
| Expiry date | Jan 16, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/07
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to a buck converter comprising: a pair P—0 of switches SB, SH in series and connected to an input terminal B of the converter by the switch SB, K other additional pairs P—1, P—2, . . . , P_i, . . . P_K−1, P_K of switches in series between another input terminal A and the switch SH of the pair P—0, with i=1, 2, . . . K−1, K, the two switches of the same additional pair P_i are connected in series via an energy recovery inductor Lr_i; K input groups, Gin—1, Gin—2, . . . Gin_i, . . . Gin_K−1, Gin_K, of Ni capacitors C each in series; K output groups, Gout—1, Gout—2, . . . Gout_i, . . . Gout_K−1, Gout_K, of Mi capacitors C each in series. The switches P—0 and the K additional pairs are simultaneously controlled by first and second complementary control signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.