KR910003887A - Overvoltage Detection and Protection Circuit - Google Patents

Overvoltage Detection and Protection Circuit Download PDF

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Publication number
KR910003887A
KR910003887A KR1019890010384A KR890010384A KR910003887A KR 910003887 A KR910003887 A KR 910003887A KR 1019890010384 A KR1019890010384 A KR 1019890010384A KR 890010384 A KR890010384 A KR 890010384A KR 910003887 A KR910003887 A KR 910003887A
Authority
KR
South Korea
Prior art keywords
overvoltage
detection
protection circuit
overvoltage detection
power supply
Prior art date
Application number
KR1019890010384A
Other languages
Korean (ko)
Other versions
KR910005110B1 (en
Inventor
김종표
Original Assignee
정용문
삼성전자 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 정용문, 삼성전자 주식회사 filed Critical 정용문
Priority to KR1019890010384A priority Critical patent/KR910005110B1/en
Publication of KR910003887A publication Critical patent/KR910003887A/en
Application granted granted Critical
Publication of KR910005110B1 publication Critical patent/KR910005110B1/en

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage

Landscapes

  • Emergency Protection Circuit Devices (AREA)
  • Control Of Voltage And Current In General (AREA)
  • Protection Of Static Devices (AREA)

Abstract

내용 없음.No content.

Description

과전압 검출 및 보호회로Overvoltage Detection and 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,

제2도는 제1도의 동작파형도.2 is an operating waveform diagram of FIG.

Claims (1)

디지탈회로에 공급되는 전원전압들의 과전압 유무룰 검출하며, 과전압 검출시 해당 상태를 표시하는 동시에 해당회로로 공급되는 전원전압을 차단하는 과전압 검출 및 보호회로에 있어서, 정의 전압을 갖는 전원들의 과전압 허용치를 설정하여 내부의 드레쉬 홀드 기준전압과 비교한 후 해당 전원들에 대한 과전압 검출유무 신호를 발생하는 제1검출수단과, 부의 전압을 갖는 전원들의 과전압 허용치를 설정하여 극성을 반전시킨 후 내부의 드레쉬 홀드 기준전압과 비교하여 해당 전원들에 대한 과전압 검출유무 신호를 발생하는 제2검출수단과, 상기 제1 및 제2검출수단의 출력을 논리 조합하여 과전압 검출신호를 발생시 해당 상태를 표시하는 과전압 검출 표시수단과, 상기 제1검출수단과 해당전원을 동작전원으로 공급받는 부하사이에 연결되어 과전압 검출신호 발생시 스위칭되어 해당 전원의 통로를 차단하는 제2차단수단으로 구성됨을 특징으로 하는 과전압 검출 및 보호회로.In the overvoltage detection and protection circuit that detects whether there is an overvoltage of power supply voltages supplied to the digital circuit, and displays the state when the overvoltage is detected, and cuts off the supply voltage supplied to the corresponding circuit. The first detection means for generating an overvoltage detection signal for the corresponding power supplies and the overvoltage tolerance of the power sources having a negative voltage, and inverting the polarity after setting the internal threshold. A second detection means for generating an overvoltage detection presence signal for the corresponding power supplies in comparison with the shehold reference voltage, and an overvoltage for indicating the state when an overvoltage detection signal is generated by logically combining the outputs of the first and second detection means. Connected between the detection display means and a load supplied with the first detection means and the corresponding power supply to the operating power; Overvoltage detection and protection circuit, characterized in the event of switching voltage detection signal composed of a second blocking means for blocking the passage of the power supply. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019890010384A 1989-07-21 1989-07-21 Over voltage protective circuit KR910005110B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019890010384A KR910005110B1 (en) 1989-07-21 1989-07-21 Over voltage protective circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019890010384A KR910005110B1 (en) 1989-07-21 1989-07-21 Over voltage protective circuit

Publications (2)

Publication Number Publication Date
KR910003887A true KR910003887A (en) 1991-02-28
KR910005110B1 KR910005110B1 (en) 1991-07-22

Family

ID=19288302

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019890010384A KR910005110B1 (en) 1989-07-21 1989-07-21 Over voltage protective circuit

Country Status (1)

Country Link
KR (1) KR910005110B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020037892A (en) * 2000-11-15 2002-05-23 양준열 A buck conveerter with oevr voltage protection circuit
KR100665506B1 (en) * 2005-10-11 2007-01-09 이후근 Nailclipper

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020037892A (en) * 2000-11-15 2002-05-23 양준열 A buck conveerter with oevr voltage protection circuit
KR100665506B1 (en) * 2005-10-11 2007-01-09 이후근 Nailclipper

Also Published As

Publication number Publication date
KR910005110B1 (en) 1991-07-22

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