DC-DC converter

Details DC-DC converter DC-DC converter

2007-10-23

2007-10-23

Han, Jessica (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

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

C323S284000

Reexamination Certificate

active

11523699

ABSTRACT:
A DC-DC converter for converting an input DC voltage to an output DC voltage has a switch element which is turned ON/OFF by a drive signal, a reference voltage source for outputting a first reference voltage when the switch element is ON or outputting a second reference voltage when the switch element is OFF, a capacitive element having one terminal connected to the reference voltage source, a charge/discharge circuit for discharging the capacitive element when the switch element is ON and charging the capacitive element when the switch element is OFF, a switch circuit for short-circuiting the capacitive element when the switch element is turned ON and OFF, and a comparison circuit for comparing the output DC voltage or a voltage at which the output DC voltage is detected with a voltage at the other terminal of the capacitive element and generating the drive signal.

REFERENCES:
patent: 5436550 (1995-07-01), Arakawa
patent: 5977756 (1999-11-01), Nagata et al.
patent: 6489758 (2002-12-01), Moriconi et al.
patent: 6624619 (2003-09-01), Fujita et al.
patent: 2004-64994 (2004-02-01), None

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