JPS56125110A - Reset circuit - Google Patents

Reset circuit

Info

Publication number
JPS56125110A
JPS56125110A JP2739580A JP2739580A JPS56125110A JP S56125110 A JPS56125110 A JP S56125110A JP 2739580 A JP2739580 A JP 2739580A JP 2739580 A JP2739580 A JP 2739580A JP S56125110 A JPS56125110 A JP S56125110A
Authority
JP
Japan
Prior art keywords
voltage
power supply
terminal
value
resistor
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
JP2739580A
Other languages
Japanese (ja)
Inventor
Yasuhiro Kasahara
Tsugio Itagaki
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP2739580A priority Critical patent/JPS56125110A/en
Publication of JPS56125110A publication Critical patent/JPS56125110A/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
    • 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
    • H03K2017/226—Modifications for ensuring a predetermined initial state when the supply voltage has been applied in bipolar transistor switches

Landscapes

  • Electronic Switches (AREA)

Abstract

PURPOSE:To enable sure reset operation even if the power supply voltage rises slowly and the power supply is quickly interrupted in a short period, by the switching of conduction or nonconduction through on/off of the power supply voltage. CONSTITUTION:The circuit is provided with drive TR4 driving a switching transistor TR8, Zener diode 1 setting the operating point of TR4, and bias resistors 2, 3, 5 for TR4. A capacitor 9 charging/discharging is provided between TR8 and the reset use input terminal 10. The capacitor 9 is charged through resistors 6 and 7 when the power switch 12 is on, and the charged voltage is fed to the terminal 10. When the switch 12 is off, the capacitor 9 is discharged through the resistor 7 and TR8. The value of the resistor 6 is set to a greater value so that the leading of the voltage at the terminal 10 is slower than the power supply voltage B, and the value of the resistor 7 is set to a small value so that the trailing of the voltage B is faster than the trailing of the voltage at the terminal 10, allowing to ensure the reset operation.
JP2739580A 1980-03-06 1980-03-06 Reset circuit Pending JPS56125110A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2739580A JPS56125110A (en) 1980-03-06 1980-03-06 Reset circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2739580A JPS56125110A (en) 1980-03-06 1980-03-06 Reset circuit

Publications (1)

Publication Number Publication Date
JPS56125110A true JPS56125110A (en) 1981-10-01

Family

ID=12219866

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2739580A Pending JPS56125110A (en) 1980-03-06 1980-03-06 Reset circuit

Country Status (1)

Country Link
JP (1) JPS56125110A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59119643U (en) * 1983-01-31 1984-08-13 日本電気ホームエレクトロニクス株式会社 Pulse generation circuit for initial setting
CN107615663A (en) * 2016-01-28 2018-01-19 深圳瀚飞科技开发有限公司 Automatically reset mu balanced circuit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59119643U (en) * 1983-01-31 1984-08-13 日本電気ホームエレクトロニクス株式会社 Pulse generation circuit for initial setting
CN107615663A (en) * 2016-01-28 2018-01-19 深圳瀚飞科技开发有限公司 Automatically reset mu balanced circuit
CN107615663B (en) * 2016-01-28 2021-03-19 深圳瀚飞科技开发有限公司 Automatic reset voltage stabilizing circuit

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