Electricity: power supply or regulation systems – Output level responsive – Using a three or more terminal semiconductive device as the...
Patent
1995-11-28
1997-09-23
Wong, Peter S.
Electricity: power supply or regulation systems
Output level responsive
Using a three or more terminal semiconductive device as the...
323284, 323283, G05F 156
Patent
active
056708661
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. This makes it possible to reduce a loss of the circuit, thereby improving efficiency of the circuit.
REFERENCES:
patent: 4792747 (1988-12-01), Schroeder
Hachimura Kenji
Suzuki Tomohiro
Riley Shawn
Sharp Kabushiki Kaisha
Wong Peter S.
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