Staas & Halsey
Electronic circuit having comparator
 An electronic circuit comprising a comparator which is operated by a first power source voltage and having first and second input terminals, where the first input terminal is supplied with a reference voltage which is dependent on the first power source voltage, a detecting circuit for detecting a deviation of a second power source voltage and for outputting a control signal dependent on the deviation, where the first and second power source voltages undergo mutually independent deviations, and a voltage converting circuit supplied with an input signal for converting a voltage of the input signal depending on the control signal received from the detecting circuit. The voltage converting circuit supplies the input signal to the second input terminal of the comparator which outputs an error signal indicative of an error between the input signal voltage and the reference voltage. 
Fujitsu Ten Limited Fujitsu Limited Fujitsu VLSI Limited
G
G01R
inventional
Katsuya Hidenobu Yasuhiro Kenzo
Shimizu Ito Yamakawa Hashikawa