JPS5754871A - Full-wave rectification circuit - Google Patents

Full-wave rectification circuit

Info

Publication number
JPS5754871A
JPS5754871A JP55131058A JP13105880A JPS5754871A JP S5754871 A JPS5754871 A JP S5754871A JP 55131058 A JP55131058 A JP 55131058A JP 13105880 A JP13105880 A JP 13105880A JP S5754871 A JPS5754871 A JP S5754871A
Authority
JP
Japan
Prior art keywords
voltage
circuit
output terminal
positive
operation amplifier
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP55131058A
Other languages
Japanese (ja)
Inventor
Mitsuo Yonemori
Hiroshi Okamoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Omron Corp
Original Assignee
Tateisi Electronics Co
Omron Tateisi Electronics Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tateisi Electronics Co, Omron Tateisi Electronics Co filed Critical Tateisi Electronics Co
Priority to JP55131058A priority Critical patent/JPS5754871A/en
Publication of JPS5754871A publication Critical patent/JPS5754871A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/22—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using conversion of ac into dc

Abstract

PURPOSE:To make it possible to eliminate voltage variation owing to change in temperature, etc., while reducing power consumption and to reduce the size of a circuit as a whole, by incorporating operation amplifier. CONSTITUTION:When a secondary side voltage V2 of a voltage transformer 1 is a positive half wave, potential of an output terminal (d) of an operation amplifier 22 is saturated in negative direction, and a diode 24 becomes OFF. On the other hand, an output terminal (b) of an operation amplifier 21 is deflected in positive direction and a diode 23 is biased in forward direction, and potentials at points (a) and (c) become equal to each other. And, when the secondary side voltage V2 is a negative half wave, the output terminal (d) is deflected in positive direction, a current i2 is fed back to point (a) through a resistor 27, and a positive voltage of an equal absolute value is impressed on a filter circuit 3. And, as an output voltage of the filter circuit 3 is compared with reference voltage of a voltage comparing circuit 4, if it proved to be higher than the reference voltage, a relay 6 is actuated through a power amplifying circuit 5. It is possible, by doing so, to lower the comparative voltage and also to reduce power consumption.
JP55131058A 1980-09-20 1980-09-20 Full-wave rectification circuit Pending JPS5754871A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55131058A JPS5754871A (en) 1980-09-20 1980-09-20 Full-wave rectification circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55131058A JPS5754871A (en) 1980-09-20 1980-09-20 Full-wave rectification circuit

Publications (1)

Publication Number Publication Date
JPS5754871A true JPS5754871A (en) 1982-04-01

Family

ID=15049019

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55131058A Pending JPS5754871A (en) 1980-09-20 1980-09-20 Full-wave rectification circuit

Country Status (1)

Country Link
JP (1) JPS5754871A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59159616A (en) * 1983-02-28 1984-09-10 松下電工株式会社 Overcurrent detector
CN103760409A (en) * 2013-11-29 2014-04-30 宁波南车时代传感技术有限公司 Voltage transducer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59159616A (en) * 1983-02-28 1984-09-10 松下電工株式会社 Overcurrent detector
CN103760409A (en) * 2013-11-29 2014-04-30 宁波南车时代传感技术有限公司 Voltage transducer

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