KR890013848A - IC overvoltage protection circuit - Google Patents

IC overvoltage protection circuit Download PDF

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Publication number
KR890013848A
KR890013848A KR1019880001142A KR880001142A KR890013848A KR 890013848 A KR890013848 A KR 890013848A KR 1019880001142 A KR1019880001142 A KR 1019880001142A KR 880001142 A KR880001142 A KR 880001142A KR 890013848 A KR890013848 A KR 890013848A
Authority
KR
South Korea
Prior art keywords
protection circuit
overvoltage
overvoltage protection
terminal
normal
Prior art date
Application number
KR1019880001142A
Other languages
Korean (ko)
Inventor
김창수
Original Assignee
강진구
삼성반도체통신 주식회사
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 강진구, 삼성반도체통신 주식회사 filed Critical 강진구
Priority to KR1019880001142A priority Critical patent/KR890013848A/en
Publication of KR890013848A publication Critical patent/KR890013848A/en

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Abstract

내용 없음.No content.

Description

IC과전압 방지회로IC overvoltage protection circuit

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명의 회로도.1 is a circuit diagram of the present invention.

Claims (1)

통상의 Vcc입력단(1)과 IC단사이에 과전압을 제거시키기 위한 제너다이오드(ZD1)와 저항(R1) 및 트랜지스터(Q1)로 구성된 과전압 방지회로부(2)를 접속하여 과전압이 제거된 정상적인 전원전압으로 IC를 동작시킬 수 있도록함을 특징으로 하는 IC과전압 방지회로.The overvoltage is eliminated by connecting a zener diode ZD 1 for removing the overvoltage between the normal Vcc input terminal 1 and the IC terminal, and an overvoltage prevention circuit portion 2 composed of a resistor R 1 and a transistor Q 1 . An IC overvoltage protection circuit that allows an IC to operate with a normal power supply voltage. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019880001142A 1988-02-08 1988-02-08 IC overvoltage protection circuit KR890013848A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019880001142A KR890013848A (en) 1988-02-08 1988-02-08 IC overvoltage protection circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019880001142A KR890013848A (en) 1988-02-08 1988-02-08 IC overvoltage protection circuit

Publications (1)

Publication Number Publication Date
KR890013848A true KR890013848A (en) 1989-09-26

Family

ID=68233252

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019880001142A KR890013848A (en) 1988-02-08 1988-02-08 IC overvoltage protection circuit

Country Status (1)

Country Link
KR (1) KR890013848A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100698138B1 (en) * 2004-12-30 2007-03-26 엘지전자 주식회사 Apparatus for Protecting Reverse Voltage and Overvoltage in Mobile Terminal

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100698138B1 (en) * 2004-12-30 2007-03-26 엘지전자 주식회사 Apparatus for Protecting Reverse Voltage and Overvoltage in Mobile Terminal

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