Switching power source apparatus and control method thereof

Details Switching power source apparatus and control method thereof Switching power source apparatus and control method thereof

2008-06-05

2011-10-04

Berhane, Adolf (Department: 2838)

Electricity: power supply or regulation systems

In shunt with source or load

Using choke and switch across source

C323S235000, C323S271000, C323S282000

Reexamination Certificate

active

08030906

ABSTRACT:
A switching power source apparatus includes a storage unit to store energy obtained from input power supplied to the storage unit, and to output at least of the stored energy as output power; a first switch; a second switch connected in series with the first switch, the series connection of the first switch and the second switch being connected to the storage unit; and a voltage clamp unit to clamp a level of a voltage applied across the series connection of the first switch and the second switch to a predetermined voltage or less. The first switch is turned on while the second switch is still turned off, and then the second switch is turned on after the first switch has been turned on to supply the input power to the storage unit from the series connection of the first switch and the second switch.

REFERENCES:
patent: 5172309 (1992-12-01), DeDoncker et al.
patent: 6816392 (2004-11-01), Takamatsu
patent: 7705571 (2010-04-01), Motz
patent: 7812575 (2010-10-01), Shimada et al.
patent: 2008/0186004 (2008-08-01), Williams

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