KR930011361A - I / O power protection method and circuit - Google Patents

I / O power protection method and circuit Download PDF

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Publication number
KR930011361A
KR930011361A KR1019910021264A KR910021264A KR930011361A KR 930011361 A KR930011361 A KR 930011361A KR 1019910021264 A KR1019910021264 A KR 1019910021264A KR 910021264 A KR910021264 A KR 910021264A KR 930011361 A KR930011361 A KR 930011361A
Authority
KR
South Korea
Prior art keywords
input
power
power supply
output
circuit
Prior art date
Application number
KR1019910021264A
Other languages
Korean (ko)
Inventor
이재복
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 KR1019910021264A priority Critical patent/KR930011361A/en
Publication of KR930011361A publication Critical patent/KR930011361A/en

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  • Direct Current Feeding And Distribution (AREA)
  • Protection Of Static Devices (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

제1비교기에서 비교하여 이 전원이 사용자가 선택한 규정된 값에 만족하고, 회로의 출력 전원이 존재할때 출력전압이 로우로 되어 논리 회로 동작으로 릴레이가 온 동작이 되며, 만약 입력 전원이 사용자가 원하는 상, 하한값에 만족치 못하거나 회로의 출력 전원이 존재하지 않을때는 릴레이를 오프시켜 입력 전원을 회로 및 장비가 손상되기 이전에 차단시킴으로써 장비 및 회로를 보호할 수 있도록 구성되어 있다.Compared with the first comparator, this power supply satisfies the prescribed value selected by the user, and when the output power of the circuit exists, the output voltage goes low and the relay is turned on by the logic circuit operation. When the upper and lower limit values are not satisfied or there is no output power of the circuit, the relay is turned off to protect the equipment and circuit by cutting off the input power before the circuit and equipment are damaged.

Description

입출력 전원보호 방식 및 회로I / O power protection method and circuit

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

제1도는 본 발명에 따른 회로도.1 is a circuit diagram according to the present invention.

Claims (3)

전원공급 장치로 공급되는 입출력 전원보호 회로에 있어서, 입력 전원의 로우입력을 감지하는 제1수단과, 상기 입력전원의 하이입력을 감지하는 제2수단과, 출력 전압을 감지하는 제3수단과, 상기 제1-3수단의 전원의 입출력 감지를 위한 구동전압을 발생하는 제4수단과, 상기 제1-3수단의 감지에 따라 입력전압(Vin)을 전원공급장치로의 공급을 제어하는 전원공급 제어 수단과, 상기 전원공급 장치로의 전원공급 상태를 표시하는 표시 수단과, 상기 전원공급부와 아이솔레이션되면서 전원공급상태 신호를 체킹하는 제5수단과, 상기 전원공급 제어 수단과 제5수단의 출력에 의해 출력상태 감지를 위한 상기 제3수단의 기준신호로 제공하는 제6수단으로 구성됨을 특징으로 하는 입출력 전원보호 회로.An input / output power protection circuit supplied to a power supply, comprising: first means for detecting a low input of input power, second means for detecting a high input of said input power, third means for detecting an output voltage, Fourth means for generating a drive voltage for the input and output detection of the power supply of the 1-3 means, Power supply for controlling the supply of the input voltage (Vin) to the power supply in accordance with the detection of the 1-3 Control means, display means for displaying a power supply state to the power supply device, fifth means for checking a power supply state signal while being isolated from the power supply unit, and outputs of the power supply control means and the fifth means. And a sixth means provided as a reference signal of the third means for detecting an output state. 제1항에 있어서, 제5수단이 포토카풀러(PT1, PT2)로 구성됨을 특징으로 하는 입출력 보호회로.2. An input / output protection circuit according to claim 1, wherein the fifth means is composed of photocouplers (PT1, PT2). 입출력 전원 보호방식에 있어서, 상기 입력전원을 비교하되, 입력전원이 사용자가 선택한 규정된 값에 만족하고, 회로의 출력 전원이 존재할때 출력전압에 따라 입력 전원 스위칭용 릴레이를 동작시켜 상기 입력 전원이 사용자가 원하는 상, 하한 값에 만족치 못하거나 회로의 출력 전원이 존재하지 않을때는 상기 릴레이를 오프시켜 입력 전원을 회로 및 장비가 손상되기 이전에 차단시키도록 함을 특징으로 하는 입출력 전원 보호방식.In the input / output power protection scheme, the input power is compared, but the input power satisfies the prescribed value selected by the user, and when the output power of the circuit is present, the input power switching relay is operated according to the output voltage. I / O power protection method characterized in that when the user does not meet the desired upper and lower limit value or the output power of the circuit does not exist, the relay is turned off to cut off the input power before damage to the circuit and equipment. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019910021264A 1991-11-26 1991-11-26 I / O power protection method and circuit KR930011361A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019910021264A KR930011361A (en) 1991-11-26 1991-11-26 I / O power protection method and circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019910021264A KR930011361A (en) 1991-11-26 1991-11-26 I / O power protection method and circuit

Publications (1)

Publication Number Publication Date
KR930011361A true KR930011361A (en) 1993-06-24

Family

ID=67356567

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019910021264A KR930011361A (en) 1991-11-26 1991-11-26 I / O power protection method and circuit

Country Status (1)

Country Link
KR (1) KR930011361A (en)

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