Constant-voltage power supply circuit with a current limiting ci

Details Constant-voltage power supply circuit with a current limiting ci Constant-voltage power supply circuit with a current limiting ci

1997-12-22

1999-08-24

Wong, Peter S.

Electricity: power supply or regulation systems

Output level responsive

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

323901, 323908, 363 49, 361 18, G05F 1573

Patent

active

059428813

ABSTRACT:
A power supply unit has an output transistor and two resistors connected in series between a power source line and a ground potential point. The output electrode of the output transistor is connected to an output terminal. Between the output terminal and the ground potential point, a capacitor is connected. When a starting switch is turned on, the output transistor starts conducting. A current limiting circuit is also provided to limit the current that flows through the output transistor when it starts conducting. The current limiting circuit bypasses part of the output current of a comparator to the ground potential point.

REFERENCES:
patent: 5365161 (1994-11-01), Inoue et al.
patent: 5550462 (1996-08-01), Nakajima
patent: 5710508 (1998-01-01), Watanabe

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