Detection circuit, physical quantity measurement circuit,...

Details Detection circuit, physical quantity measurement circuit,... Detection circuit, physical quantity measurement circuit,...

2011-01-11

2011-01-11

Dole, Timothy J (Department: 2831)

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

Of individual circuit component or element

C073S514290

Reexamination Certificate

active

07868623

ABSTRACT:
A detection circuit includes a detection terminal to which an alternating current signal from a physical quantity transducer is input, a detection current/voltage conversion amplifier circuit that converts the alternating current signal input through the detection terminal into a voltage signal, an evaluation terminal that supplies an evaluation voltage signal to the detection current/voltage conversion amplifier circuit, an input resistor that has a given resistance ratio with respect to a feedback resistor; and a switch circuit of the detection circuit provided in a signal path that connects the evaluation terminal and an input node of the detection current/voltage conversion amplifier circuit.

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patent: A-7-63511 (1995-03-01), None
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patent: A-10-284707 (1998-10-01), None
patent: A-2001-160754 (2001-06-01), None

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