JPS57121322A - Time limit relay - Google Patents

Time limit relay

Info

Publication number
JPS57121322A
JPS57121322A JP817381A JP817381A JPS57121322A JP S57121322 A JPS57121322 A JP S57121322A JP 817381 A JP817381 A JP 817381A JP 817381 A JP817381 A JP 817381A JP S57121322 A JPS57121322 A JP S57121322A
Authority
JP
Japan
Prior art keywords
resistance
time limit
variable resistance
reference voltage
capacitor
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
JP817381A
Other languages
Japanese (ja)
Inventor
Masaji Usui
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 JP817381A priority Critical patent/JPS57121322A/en
Publication of JPS57121322A publication Critical patent/JPS57121322A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/28—Modifications for introducing a time delay before switching

Abstract

PURPOSE:To make the scale for setting a time limit common to all products to reduce the production cost, by making a reference voltage source adjustable in the time limit relay where the output of an integrating circuit and the reference voltage are compared with each other to determine the time limit. CONSTITUTION:A contact 2, a resistance 3, and a constant voltage element 4 are connected in series between a power source V and the earth, and an integrating circuit consisting of a variable resistance 5, a resistance 6, and a capacitor 7 and a voltage dividing circuit consisting of a resistance 11, a variable resistance 12, and a resistance 13 are connected in parallel to the constant voltage element 4. the terminal voltage of the capacitor 7 and a reference voltage obtained from a slider of the variable resistance 12 are applied to a comparator 10. In case that the resistance value of the variable resistance 5 is adjusted to change the time limit, the scale provided on the variable resistance 5 does not coincide with the time limit by the variance of the variable resistance 5, the resistance 6, and the capacitor 7. Consequently, the variable resistance 12 is adjusted to change the reference voltage, thereby making the scale coincident with the time limit.
JP817381A 1981-01-21 1981-01-21 Time limit relay Pending JPS57121322A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP817381A JPS57121322A (en) 1981-01-21 1981-01-21 Time limit relay

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP817381A JPS57121322A (en) 1981-01-21 1981-01-21 Time limit relay

Publications (1)

Publication Number Publication Date
JPS57121322A true JPS57121322A (en) 1982-07-28

Family

ID=11685928

Family Applications (1)

Application Number Title Priority Date Filing Date
JP817381A Pending JPS57121322A (en) 1981-01-21 1981-01-21 Time limit relay

Country Status (1)

Country Link
JP (1) JPS57121322A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4607151A (en) * 1984-04-05 1986-08-19 Lectrostatic Marknads Ab Soldering iron with fume suction tube
JPS62105633U (en) * 1985-12-23 1987-07-06
JPH0613867A (en) * 1993-05-21 1994-01-21 Fuji Electric Co Ltd Electronic timer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4607151A (en) * 1984-04-05 1986-08-19 Lectrostatic Marknads Ab Soldering iron with fume suction tube
JPS62105633U (en) * 1985-12-23 1987-07-06
JPH0613867A (en) * 1993-05-21 1994-01-21 Fuji Electric Co Ltd Electronic timer

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