Constant voltage power supply circuit

Details Constant voltage power supply circuit Constant voltage power supply circuit

2008-10-21

2010-12-28

Laxton, Gary L (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

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

C323S226000, C323S269000

Reexamination Certificate

active

07859235

ABSTRACT:
A first output transistor forms a first current path between an input and an output terminal and has a first control terminal applied with a first control signal. A second output transistor forms a second current path between the output and a ground terminal and has a second control terminal applied with a second control signal. A first comparator outputs the first control signal to decrease an ON-resistance of the first transistor when an output voltage from the output terminal is a predetermined value or less. A second comparator outputs the second control signal to render the second transistor conductive to decrease the output voltage when the output voltage is a predetermined value or more. An acceleration circuit accelerates charging of the first control terminal of the first transistor to a predetermined potential. The inhibition circuit inhibits the acceleration circuit operation according to a change of the second control signal.

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patent: 6452766 (2002-09-01), Carper
patent: 7057310 (2006-06-01), Liu et al.
patent: 2007-219856 (2007-08-01), None

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