DC/DC converter

Details DC/DC converter DC/DC converter

2008-05-27

2008-05-27

Patel, Rajnikant B. (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

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

C323S283000, C315S291000

Reexamination Certificate

active

07378825

ABSTRACT:
A DC/DC converter is supplied such that the desired output setting voltage can be obtained as the load-side output, even when the difference between the power supply voltage and the output setting voltage of the load-side output is large. This DC/DC converter comprises a switching device, a voltage divider, an error amplifier, an oscillator which outputs a oscillation clock, a slope circuit which receives the oscillation clock and outputs a sawtooth waveform voltage having a slope which begins at the leading edge of the oscillation clock, a comparator which compares the sawtooth waveform voltage and the output voltage of the error amplifier, and a logic circuit which is set by the trailing edge of the oscillation clock, and is reset by the output of the comparator.

REFERENCES:
patent: 5436550 (1995-07-01), Arakawa
patent: 6194883 (2001-02-01), Shimamori
patent: 6246222 (2001-06-01), Nilles et al.
patent: 6342822 (2002-01-01), So
patent: 07-336999 (1995-12-01), None
patent: 11-332222 (1999-11-01), None

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