JPS5477059A - Electronic timer - Google Patents

Electronic timer

Info

Publication number
JPS5477059A
JPS5477059A JP14438877A JP14438877A JPS5477059A JP S5477059 A JPS5477059 A JP S5477059A JP 14438877 A JP14438877 A JP 14438877A JP 14438877 A JP14438877 A JP 14438877A JP S5477059 A JPS5477059 A JP S5477059A
Authority
JP
Japan
Prior art keywords
counter
output
circuit
time
oscillator
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
JP14438877A
Other languages
Japanese (ja)
Inventor
Mitsuo Yokomori
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.)
Toshiba TEC Corp
Original Assignee
Tokyo Electric Co Ltd
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 Tokyo Electric Co Ltd filed Critical Tokyo Electric Co Ltd
Priority to JP14438877A priority Critical patent/JPS5477059A/en
Publication of JPS5477059A publication Critical patent/JPS5477059A/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

Landscapes

  • Measurement Of Predetermined Time Intervals (AREA)
  • Electronic Switches (AREA)

Abstract

PURPOSE:To vary time specification at several stages by equipping a counter with a switch changing over respective digits and an oscillator with a frequency variable method. CONSTITUTION:Oscillator 5 is composed of oscillator circuit 4 and time-constant circuit 1, and the output of circuit 4 is inputted to counter 6. Reset terminal 7 of counter 6 is connected to the middle point between the capacitor supplied with power voltage V and the series circuit of a resistance. In addition, switch 8 changing over respective digits is provided to the output side of counter 6. For example, when time constant 1 is adjusted to one second and switch 8d is closed, eight seconds can be obtained from the output of counter 6, by which relay 13, etc., are controlled. Then, varying the resistance value of variable resistance 2 makes it possible to very the time within eight seconds as the output of counter 6.
JP14438877A 1977-12-01 1977-12-01 Electronic timer Pending JPS5477059A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14438877A JPS5477059A (en) 1977-12-01 1977-12-01 Electronic timer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14438877A JPS5477059A (en) 1977-12-01 1977-12-01 Electronic timer

Publications (1)

Publication Number Publication Date
JPS5477059A true JPS5477059A (en) 1979-06-20

Family

ID=15360972

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14438877A Pending JPS5477059A (en) 1977-12-01 1977-12-01 Electronic timer

Country Status (1)

Country Link
JP (1) JPS5477059A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57143925A (en) * 1981-03-02 1982-09-06 Toyo Umpanki Co Ltd Varying method for set time of electronic timer
JPS6044344U (en) * 1983-09-03 1985-03-28 オムロン株式会社 Relay drive circuit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50107854A (en) * 1974-01-30 1975-08-25

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50107854A (en) * 1974-01-30 1975-08-25

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57143925A (en) * 1981-03-02 1982-09-06 Toyo Umpanki Co Ltd Varying method for set time of electronic timer
JPS6044344U (en) * 1983-09-03 1985-03-28 オムロン株式会社 Relay drive circuit

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