Electrical transmission or interconnection systems – Plural load circuit systems – Plural sources of supply
Reexamination Certificate
2004-06-14
2008-08-05
Deberadinis, Robert L. (Department: 2836)
Electrical transmission or interconnection systems
Plural load circuit systems
Plural sources of supply
Reexamination Certificate
active
07408269
ABSTRACT:
There is provided a method for managing a multi-level power supply. The method includes comparing a voltage level (Vs1) of a lower voltage supply bus to a voltage level (Vs2) of a higher voltage supply bus, and routing current from the lower voltage supply bus to the higher voltage supply bus if Vs2<Vs1. The lower and higher voltage supply busses provide power to a complementary metal oxide semiconductor (CMOS) circuit. The method prevents a latch-up of the CMOS circuit. There is also provided a circuit that employs the method.
REFERENCES:
patent: 6333642 (2001-12-01), Kurisu
Microchip, AN763 , Feb. 5, 2003.
Hsu Louis L
Joshi Rajiv V
Deberadinis Robert L.
International Business Machines - Corporation
Ohlandt Greeley Ruggiero & Perle L.L.P.
Percello, Esq. Louis J.
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