JPS56152321A - Initial reset circuit of logical operation circuit - Google Patents

Initial reset circuit of logical operation circuit

Info

Publication number
JPS56152321A
JPS56152321A JP5469080A JP5469080A JPS56152321A JP S56152321 A JPS56152321 A JP S56152321A JP 5469080 A JP5469080 A JP 5469080A JP 5469080 A JP5469080 A JP 5469080A JP S56152321 A JPS56152321 A JP S56152321A
Authority
JP
Japan
Prior art keywords
capacitor
resistance
circuit
diode
reset
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
JP5469080A
Other languages
Japanese (ja)
Inventor
Tetsuo Ogawa
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.)
Japan Radio Co Ltd
Original Assignee
Japan Radio 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 Japan Radio Co Ltd filed Critical Japan Radio Co Ltd
Priority to JP5469080A priority Critical patent/JPS56152321A/en
Publication of JPS56152321A publication Critical patent/JPS56152321A/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
    • H03K17/22—Modifications for ensuring a predetermined initial state when the supply voltage has been applied

Landscapes

  • Electronic Switches (AREA)
  • Logic Circuits (AREA)

Abstract

PURPOSE:To make reset for power break quick, by connecting the connection point between the parallel circuit consisting of a capacitor and a resistance and a resistance to the connection point between another resistance and capacitor through a diode and by applying power to respective series circuits. CONSTITUTION:At the application time of power supply, capacitor C is charged through resistance R3 slowly because diode D is biased backward initially; and when the charge reaches a prescribed value, Schmitt circuit 1 operates to release reset. After that, diode D is biased forward, and the potential at point (a) is converged to steady state potential V determined by resistances R1, R2 and R5. At the power break time, since electric charge of capacitor C4 is larger than that of capcitor C5, diode D is biased forward, and charge of capacitor C5 is discharged through resistance R2, an Schmitt circuit 1 is turned off to reset the circuit.
JP5469080A 1980-04-24 1980-04-24 Initial reset circuit of logical operation circuit Pending JPS56152321A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5469080A JPS56152321A (en) 1980-04-24 1980-04-24 Initial reset circuit of logical operation circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5469080A JPS56152321A (en) 1980-04-24 1980-04-24 Initial reset circuit of logical operation circuit

Publications (1)

Publication Number Publication Date
JPS56152321A true JPS56152321A (en) 1981-11-25

Family

ID=12977785

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5469080A Pending JPS56152321A (en) 1980-04-24 1980-04-24 Initial reset circuit of logical operation circuit

Country Status (1)

Country Link
JP (1) JPS56152321A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS619931U (en) * 1984-06-25 1986-01-21 松下電工株式会社 Reset signal generation circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS619931U (en) * 1984-06-25 1986-01-21 松下電工株式会社 Reset signal generation circuit

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