Power supply system for electric circuits different in operating

Details Power supply system for electric circuits different in operating Power supply system for electric circuits different in operating

1992-01-27

1993-04-13

Stephan, Steven L.

Electricity: power supply or regulation systems

Output level responsive

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

323273, 307 33, 307 36, G05F 144

Patent

active

052026183

ABSTRACT:
An electric power supply system distributes power voltage levels to electric circuits different in operating voltage from one another, and comprises a plurality of step-down units each coupling two of the electric circuits, wherein each of the plurality of step-down units comprises a first step-down transistor having an emitter-and-collector current path coupled between the associated two electric circuits, and a second step-down transistor having an emitter-and-collector current path between one of the associated two electric circuit and another step-down unit so that part of current from one of the associated two electric circuits is reused in the other of the associated two electric circuits.

REFERENCES:
patent: 4614906 (1986-09-01), Maxham
patent: 4652769 (1987-03-01), Smith et al.

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