Title:
【発明の名称】電子回路
Document Type and Number:
Japanese Patent JP3209519
Kind Code:
B2
Abstract:
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.
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Inventors:
Hidenobu Ito
Katsuya Shimizu
Kenzo Hashikawa
Yasuhiro Yamakawa
Katsuya Shimizu
Kenzo Hashikawa
Yasuhiro Yamakawa
Application Number:
JP21336788A
Publication Date:
September 17, 2001
Filing Date:
August 26, 1988
Export Citation:
Assignee:
富士通株式会社
富士通ヴイエルエスアイ株式会社
富士通テン株式会社
富士通ヴイエルエスアイ株式会社
富士通テン株式会社
International Classes:
G01R19/165; H03K5/02; H03K19/0175; (IPC1-7): H03K5/02
Domestic Patent References:
| JP53160329B | ||||
| JPS5962204A | ||||
| JPS6157628B2 |
Attorney, Agent or Firm:
Tadahiko Ito (2 outside)