Power supply apparatus

Details Power supply apparatus Power supply apparatus

1995-06-05

1997-11-25

Sterrett, Jeffrey L.

Electricity: power supply or regulation systems

Output level responsive

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

323222, 323282, 363 65, G05F 156

Patent

active

056916310

ABSTRACT:
The apparatus of the present invention has an interface circuit which returns power in H-level output state, a first power circuit supplying a first supply voltage, and a second power circuit supplying a second supply voltage. The second power circuit receives the entered first supply voltage from the first power circuit, and in a first operation mode (L-level output condition), brings the first supply voltage of 3.3 V down to the second supply voltage of 1.5 V and supplies same to the interface circuit. In a second operation mode (H-level output condition) of the load circuit, a current output from the load circuit is brought up to the first supply voltage of 3.3 V and feeds same back to the first power circuit.

REFERENCES:
patent: 4186437 (1980-01-01), Cuk
patent: 5404092 (1995-04-01), Gegner
patent: 5414341 (1995-05-01), Brown

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