Multiple voltage level detection circuit

Details Multiple voltage level detection circuit Multiple voltage level detection circuit

2006-01-31

2006-01-31

Deb, Anjan (Department: 2858)

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

For fault location

C324S09900D

Reexamination Certificate

active

06992489

ABSTRACT:
A circuit configurable for indicating a voltage level of an input signal applied to the circuit includes at least one transistor having a first terminal connected to a first voltage supply, a second terminal configured for receiving the input signal, and a third terminal operatively coupled to an output of the circuit. The circuit further includes a passive load connected between the third terminal of the transistor and a second voltage supply. The circuit is configured to generate an output signal at the output of the circuit. The output signal being at a first value indicates that the input signal is substantially at a first voltage level, and the output signal being at a second value indicates that the input signal is substantially at a second voltage level.

REFERENCES:
patent: 3409784 (1968-11-01), Pommerening
patent: 3760272 (1973-09-01), Battes
patent: 3806915 (1974-04-01), Higgins et al.
patent: 4071822 (1978-01-01), Kamiya
patent: 5170077 (1992-12-01), Schreck
patent: 5859461 (1999-01-01), Bonaccio et al.
patent: 6236243 (2001-05-01), Takeshima
patent: 6639424 (2003-10-01), Bales

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