JPS51148348A - Input protection circuit - Google Patents

Input protection circuit

Info

Publication number
JPS51148348A
JPS51148348A JP50072588A JP7258875A JPS51148348A JP S51148348 A JPS51148348 A JP S51148348A JP 50072588 A JP50072588 A JP 50072588A JP 7258875 A JP7258875 A JP 7258875A JP S51148348 A JPS51148348 A JP S51148348A
Authority
JP
Japan
Prior art keywords
protection circuit
input protection
input
circuit
voltage
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
JP50072588A
Other languages
Japanese (ja)
Other versions
JPS5741138B2 (en
Inventor
Junichi Mogi
Kiyoshi Miyasaka
Fumio Baba
Kunihiko Wada
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP50072588A priority Critical patent/JPS51148348A/en
Publication of JPS51148348A publication Critical patent/JPS51148348A/en
Publication of JPS5741138B2 publication Critical patent/JPS5741138B2/ja
Granted 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
    • H03K17/08—Modifications for protecting switching circuit against overcurrent or overvoltage

Landscapes

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

Abstract

PURPOSE:To prevent the IC damage of an input protection circuit by constructing a circuit where a source terminal of IC is connected with an input terminal during no application of voltage at low impedance of reference voltage.
JP50072588A 1975-06-14 1975-06-14 Input protection circuit Granted JPS51148348A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50072588A JPS51148348A (en) 1975-06-14 1975-06-14 Input protection circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50072588A JPS51148348A (en) 1975-06-14 1975-06-14 Input protection circuit

Publications (2)

Publication Number Publication Date
JPS51148348A true JPS51148348A (en) 1976-12-20
JPS5741138B2 JPS5741138B2 (en) 1982-09-01

Family

ID=13493686

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50072588A Granted JPS51148348A (en) 1975-06-14 1975-06-14 Input protection circuit

Country Status (1)

Country Link
JP (1) JPS51148348A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55115728A (en) * 1979-02-28 1980-09-05 Nec Corp Level clamp circuit
JPS5897867A (en) * 1981-12-07 1983-06-10 Fujitsu Ltd Semiconductor device
JPS6138953U (en) * 1984-08-10 1986-03-11 スタンレー電気株式会社 Input protection circuit for integrated circuit components

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55115728A (en) * 1979-02-28 1980-09-05 Nec Corp Level clamp circuit
JPH02894B2 (en) * 1979-02-28 1990-01-09 Nippon Electric Co
JPS5897867A (en) * 1981-12-07 1983-06-10 Fujitsu Ltd Semiconductor device
JPS6138953U (en) * 1984-08-10 1986-03-11 スタンレー電気株式会社 Input protection circuit for integrated circuit components

Also Published As

Publication number Publication date
JPS5741138B2 (en) 1982-09-01

Similar Documents

Publication Publication Date Title
JPS51148348A (en) Input protection circuit
JPS5338958A (en) Monostable multi-vibrator circuit
JPS5214345A (en) Transistor sparking circuit
JPS5368890A (en) Suspended line type microwave circuit
JPS5255476A (en) Semiconductor device
JPS5419365A (en) High frequency high output transistor
JPS5350644A (en) Active two terminal impedance circuit
JPS51139783A (en) Semiconductor protective circuit
JPS5260544A (en) Signal converter circuit
JPS5258378A (en) Protection of input to mos type integrated circuit
JPS5376728A (en) Microwave circuit
JPS51116964A (en) Circuit for applying d.c. constant-voltage and a.c. voltage
JPS525243A (en) High withstand voltage push-pull circuit
JPS5630956B2 (en)
JPS53140960A (en) Wave shape circuit of oscillator type
JPS51135384A (en) Semiconductor integrated circuit
CA589866A (en) Notched electronic sweep generator circuit
JPS51149742A (en) Addition averaging circuit
JPS5280789A (en) Hole element
JPS5279643A (en) Gain control circuit
CA605148A (en) Very high frequency computing circuit
JPS5297614A (en) Control circuit
JPS51123041A (en) Compenstaion circuit for mos threshold voltage
CA598634A (en) Electrical inverter circuit
AU242641B2 (en) An electronic counter circuit