IC wherein a chopper-type buck regulator PNP switch supplies bas

Details IC wherein a chopper-type buck regulator PNP switch supplies bas IC wherein a chopper-type buck regulator PNP switch supplies bas

1997-05-13

1998-11-17

Riley, Shawn

Electricity: power supply or regulation systems

Output level responsive

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

323285, 323282, G05F 140

Patent

active

058381473

ABSTRACT:
A chopper-type regulator circuit includes an output transistor composed of a PNP-type transistor, and a control section for controlling switching of the output transistor based upon a voltage difference between a reference voltage and an output voltage. The control section is provided with a base current output terminal for supplying a base current of the output transistor to a load connected to the chopper-type regulator circuit.

REFERENCES:
patent: 4585988 (1986-04-01), Nakai
patent: 4652984 (1987-03-01), Van der Akker et al.
patent: 4792747 (1988-12-01), Schroeder
patent: 5670866 (1997-09-01), Suzuki et al.

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