KR900018787A - Power failure detection circuit - Google Patents

Power failure detection circuit Download PDF

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Publication number
KR900018787A
KR900018787A KR1019890007320A KR890007320A KR900018787A KR 900018787 A KR900018787 A KR 900018787A KR 1019890007320 A KR1019890007320 A KR 1019890007320A KR 890007320 A KR890007320 A KR 890007320A KR 900018787 A KR900018787 A KR 900018787A
Authority
KR
South Korea
Prior art keywords
power failure
signal
power supply
detection means
decoding
Prior art date
Application number
KR1019890007320A
Other languages
Korean (ko)
Other versions
KR910006505B1 (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 KR1019890007320A priority Critical patent/KR910006505B1/en
Publication of KR900018787A publication Critical patent/KR900018787A/en
Application granted granted Critical
Publication of KR910006505B1 publication Critical patent/KR910006505B1/en

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Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current
    • G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
    • G05F1/56—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices
    • G05F1/565—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices sensing a condition of the system or its load in addition to means responsive to deviations in the output of the system, e.g. current, voltage, power factor
    • G05F1/569—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices sensing a condition of the system or its load in addition to means responsive to deviations in the output of the system, e.g. current, voltage, power factor for protection
    • G05F1/571—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices sensing a condition of the system or its load in addition to means responsive to deviations in the output of the system, e.g. current, voltage, power factor for protection with overvoltage detector

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Power Sources (AREA)

Abstract

내용 없음No content

Description

전원 고장 검출회로Power failure detection circuit

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

제1도는 본 발명의 구성 블럭도, 제2도는 제1도의 구체회로도.1 is a block diagram of the present invention, and FIG. 2 is a specific circuit diagram of FIG.

Claims (1)

디지탈회로에 공급되는 전원전압들의 변동을 검출하며, 이상상태 검출시 시스템 제어부로 이를 알리는 전원 고장 검출회로에 있어서, 정의 전압을 갖는 전원들의 변동 허용치를 설정하여 내부의 드레쉬 홀드 기준전압과 비교한 후 각 전원들에 대한 이상 유무신호를 발생하는 제1검출 수단과, 부의 전압을 갖는 전원들의 변동 허용치를 설정하여 극성을 반전시킨 후 내부 드레쉬 홀드 기준전압과 비교하여 각 전원들에 대한 이상 유무신호를 발생하는 제2검출수단과, 상기 제1 및 제2검출수단의 각각의 결과 신호들을 논리 조합하여 이상상태 발생시 이를 표시하는 전원 고장 표시 수단과, 상기 전원 고장 표시수단의 출력에 의해 상기 제1-제2검출수단들의 각 출력들을 내부에 저장하며, 디코딩 신호에 의해 이를 제어부로 출력하는 래치수단과, 제어부의 특정 어드레스 신호를 디코딩하여 상기 래치수단의 출력신호를 발생하는 디코딩 수단으로 구성됨을 특징으로 하는 전원 고장 검출회로.In a power failure detection circuit that detects a change in power supply voltages supplied to a digital circuit and informs a system controller when an abnormal state is detected, a change tolerance value of powers having a positive voltage is set and compared with an internal threshold reference voltage. After the first detection means for generating an abnormal presence signal for each power supply and the change tolerance of the power supply having a negative voltage to reverse the polarity and compared with the internal threshold reference voltage, there is an abnormality for each power supply The second detection means for generating a signal, a power failure display means for logically combining the respective result signals of the first and second detection means to indicate when an abnormal state occurs, and the output by the output of the power failure display means. Latch means for storing the respective outputs of the first-second detection means therein and outputting the outputs to the controller by a decoding signal; And decoding means for decoding a specific address signal to generate an output signal of said latching means. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019890007320A 1989-05-31 1989-05-31 Circuit detecting disorder in power supply KR910006505B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019890007320A KR910006505B1 (en) 1989-05-31 1989-05-31 Circuit detecting disorder in power supply

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019890007320A KR910006505B1 (en) 1989-05-31 1989-05-31 Circuit detecting disorder in power supply

Publications (2)

Publication Number Publication Date
KR900018787A true KR900018787A (en) 1990-12-22
KR910006505B1 KR910006505B1 (en) 1991-08-27

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019890007320A KR910006505B1 (en) 1989-05-31 1989-05-31 Circuit detecting disorder in power supply

Country Status (1)

Country Link
KR (1) KR910006505B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100252474B1 (en) * 1996-12-14 2000-05-01 윤종용 Power detection circuit

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104753361B (en) 2013-12-25 2018-03-27 Abb技术有限公司 Polyphase electric power driver and its method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100252474B1 (en) * 1996-12-14 2000-05-01 윤종용 Power detection circuit

Also Published As

Publication number Publication date
KR910006505B1 (en) 1991-08-27

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