DC-DC converter and method of controlling DC-DC converter

Details DC-DC converter and method of controlling DC-DC converter DC-DC converter and method of controlling DC-DC converter

2007-10-09

2007-10-09

Riley, Shawn (Department: 2838)

Electricity: power supply or regulation systems

In shunt with source or load

Using a three or more terminal semiconductive device

C323S285000

Reexamination Certificate

active

11342553

ABSTRACT:
A DC-DC converter applicable to a wide input voltage range. An error amplifier compares a divided voltage, which is generated by dividing output voltage with a plurality of resistors, and a reference voltage to generate an error signal. A voltage source generates an offset signal by offsetting the error signal. A PWM comparator compares the offset signal with a triangular wave signal to generate a drive signal for controlling activation and inactivation of a first output transistor and a second transistor at a duty corresponding to the comparison result. An offset controller determines the ratio between the output voltage and the input voltage and controls the offset voltage of the voltage source in accordance with the determination.

REFERENCES:
patent: 7119522 (2006-10-01), Tomiyoshi
patent: 05-304771 (1993-11-01), None
patent: 11-187647 (1999-07-01), None
patent: 2002-112535 (2002-04-01), None
patent: 2002-374131 (2002-12-01), None
patent: 2003-219638 (2003-07-01), None
patent: 2004-040859 (2004-02-01), None

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