JPS568559A - Current detecting circuit - Google Patents

Current detecting circuit

Info

Publication number
JPS568559A
JPS568559A JP8458279A JP8458279A JPS568559A JP S568559 A JPS568559 A JP S568559A JP 8458279 A JP8458279 A JP 8458279A JP 8458279 A JP8458279 A JP 8458279A JP S568559 A JPS568559 A JP S568559A
Authority
JP
Japan
Prior art keywords
current
resistance
voltage
switch
diode
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
JP8458279A
Other languages
Japanese (ja)
Inventor
Akiyoshi Teramoto
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP8458279A priority Critical patent/JPS568559A/en
Publication of JPS568559A publication Critical patent/JPS568559A/en
Pending legal-status Critical Current

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Abstract

PURPOSE: To increase the detecting accuracy by flowing for detection an output ?current via a 1st resistance in which the diodes are connected in parallel plus the resistance having a smaller resistance value than the 1st resistance.
CONSTITUTION: The current in line 2 flows through resistance 6 owing to the barrier layer voltage V7 of diode 7 in the region up to minute current I1, and is then detected from both ends of resistance 6 to be dilivered via amplifier 9, switch 8-2 and others. On the other hand, most in the current of line 2 flows via diode 7 in the region exceeding current I1, and thus the voltage at both ends of resistance 6 decreases. However, the voltage at both ends of resistance 3 is high enough and then delivered outside in the form of the current signal and via amplifier 4 and switch 8-1 each. Switches 8-1 and 8-2 are switched automatically in correspondence to current I1. Thus the current signals obtained through the 1st and 2nd resistances are delivered in the case of the minute current and other currents respectively. As a result, the detecting accuracy can be increased for the current.
COPYRIGHT: (C)1981,JPO&Japio
JP8458279A 1979-07-02 1979-07-02 Current detecting circuit Pending JPS568559A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8458279A JPS568559A (en) 1979-07-02 1979-07-02 Current detecting circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8458279A JPS568559A (en) 1979-07-02 1979-07-02 Current detecting circuit

Publications (1)

Publication Number Publication Date
JPS568559A true JPS568559A (en) 1981-01-28

Family

ID=13834662

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8458279A Pending JPS568559A (en) 1979-07-02 1979-07-02 Current detecting circuit

Country Status (1)

Country Link
JP (1) JPS568559A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6120972U (en) * 1984-07-12 1986-02-06 東北三國工業株式会社 Solenoid valve for thermocouple type gas fire safety device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6120972U (en) * 1984-07-12 1986-02-06 東北三國工業株式会社 Solenoid valve for thermocouple type gas fire safety device

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