DC-DC converter

Details DC-DC converter DC-DC converter

2008-06-03

2010-10-12

Laxton, Gary L (Department: 2838)

Electricity: power supply or regulation systems

In shunt with source or load

Using a three or more terminal semiconductive device

C323S225000, C323S271000, C323S284000

Reexamination Certificate

active

07812578

ABSTRACT:
A DC-DC converter includes a series circuit of a main switch and a choke coil and an output capacitor connected to one end of the series circuit and outputs a DC voltage from the one end of the series circuit. A first MOS transistor is connected in parallel to the series circuit and a second MOS transistor is connected in parallel to the output capacitor. A control circuit controls the gate voltages of the first MOS transistor and/or the second MOS transistor so that the first MOS transistor and/or the second MOS transistor outputs a changed target output voltage, whereby the output voltage is made equal to the target voltage at high speed.

REFERENCES:
patent: 7239114 (2007-07-01), Durbaum et al.
patent: 2002/0024826 (2002-02-01), Katayama
patent: 2006/0255782 (2006-11-01), Sugiyama et al.
patent: 2002-78326 (2002-03-01), None
patent: 2005-168170 (2005-06-01), None

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