Serial connected low-loss synchronously switchable voltage...

Details Serial connected low-loss synchronously switchable voltage... Serial connected low-loss synchronously switchable voltage...

2006-11-14

2006-11-14

Han, Jessica (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

Using a three or more terminal semiconductive device as the...

C323S225000, C323S259000, C323S271000, C323S288000, C363S062000

Reexamination Certificate

active

07135847

ABSTRACT:
The invention relates to a buck converter comprising: a pair P—0of 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—0and the K additional pairs are simultaneously controlled by first and second complementary control signals.

REFERENCES:
patent: 4654769 (1987-03-01), Middlebrook
patent: 5357419 (1994-10-01), Limpaecher
patent: 6023154 (2000-02-01), Martinez
patent: 6304065 (2001-10-01), Wittenbreder
patent: 6437999 (2002-08-01), Wittenbreder
patent: 03 235657 (1991-10-01), None

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