JPS56160132A - Resetting circuit - Google Patents

Resetting circuit

Info

Publication number
JPS56160132A
JPS56160132A JP6375780A JP6375780A JPS56160132A JP S56160132 A JPS56160132 A JP S56160132A JP 6375780 A JP6375780 A JP 6375780A JP 6375780 A JP6375780 A JP 6375780A JP S56160132 A JPS56160132 A JP S56160132A
Authority
JP
Japan
Prior art keywords
circuit
trq2
noise
turned
power source
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.)
Granted
Application number
JP6375780A
Other languages
Japanese (ja)
Other versions
JPS609369B2 (en
Inventor
Yoshitaka Kawase
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.)
Sharp Corp
Original Assignee
Sharp 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 Sharp Corp filed Critical Sharp Corp
Priority to JP55063757A priority Critical patent/JPS609369B2/en
Publication of JPS56160132A publication Critical patent/JPS56160132A/en
Publication of JPS609369B2 publication Critical patent/JPS609369B2/en
Expired 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
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16533—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application
    • G01R19/16538—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electronic Switches (AREA)

Abstract

PURPOSE:To reduce an effect of noise, by forming a resetting circuit with a Zener diode which generates the reference voltage and a storage battery voltage setting resistance that lowers to secure a timing for generation of a reset signal. CONSTITUTION:Automatic switching is given to a storage battery which functions as a backup power source after an AC power source is turned off, and a switching transistor TRQ1 is turned off when the output voltage VCC becomes less than VMIN. Then the base current of a TRQ2 flows via a Zener diode ZD2 and a resistance R1 to turn on the TRQ2. Thus a desired reset signal RS is delivered through an output terminal 13. As a result, a stage of inverter can be excluded for a resetting circuit unlike the conventional circuit to simplify the circuit constitution with a reduction of the effect to the noise.
JP55063757A 1980-05-13 1980-05-13 reset circuit Expired JPS609369B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55063757A JPS609369B2 (en) 1980-05-13 1980-05-13 reset circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55063757A JPS609369B2 (en) 1980-05-13 1980-05-13 reset circuit

Publications (2)

Publication Number Publication Date
JPS56160132A true JPS56160132A (en) 1981-12-09
JPS609369B2 JPS609369B2 (en) 1985-03-09

Family

ID=13238577

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55063757A Expired JPS609369B2 (en) 1980-05-13 1980-05-13 reset circuit

Country Status (1)

Country Link
JP (1) JPS609369B2 (en)

Also Published As

Publication number Publication date
JPS609369B2 (en) 1985-03-09

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