Series control type regulator

Details Series control type regulator Series control type regulator

1999-07-29

2000-02-29

Han, Y. J.

Electricity: power supply or regulation systems

Output level responsive

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

323284, G05F 156

Patent

active

060313641

ABSTRACT:
The present invention provides a series control type regulator which can decrease rapidly an output voltage regardless of heaviness or lightness of a load when a first transistor for controlling an output voltage is set to a state of stop of operation. When a switching circuit sets the first transistor from a state of operation to a state of stop, at the same time an output capacitor is discharged by causing to a discharge circuit connected in parallel to the output capacitor. The discharge circuit starts operating by turning on a third transistor, which turns on by a current flowing to voltage dividing resistors of a detection circuit being used as a base current. The voltage dividing resistors of the detection circuit are also used as resistors for setting a base current of the third transistor.

REFERENCES:
patent: 5309082 (1994-05-01), Payne
patent: 5365161 (1994-11-01), Inoue et al.
patent: 5563500 (1996-10-01), Muterspaugh
patent: 5563501 (1996-10-01), Chan
patent: 5828206 (1998-10-01), Hosono et al.

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