KR930010674A - Voltage protection circuit - Google Patents

Voltage protection circuit Download PDF

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Publication number
KR930010674A
KR930010674A KR1019910021273A KR910021273A KR930010674A KR 930010674 A KR930010674 A KR 930010674A KR 1019910021273 A KR1019910021273 A KR 1019910021273A KR 910021273 A KR910021273 A KR 910021273A KR 930010674 A KR930010674 A KR 930010674A
Authority
KR
South Korea
Prior art keywords
voltage
comparison voltage
signal
generate
main circuit
Prior art date
Application number
KR1019910021273A
Other languages
Korean (ko)
Inventor
문병민
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 KR1019910021273A priority Critical patent/KR930010674A/en
Publication of KR930010674A publication Critical patent/KR930010674A/en

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Abstract

전압보호 회로에서 초기 전원공급시 주회로의 동작개시후 동작 전원의 상태를 감시하여 보조회로의 동작이 제어한다. 이를 위하여 주회로의 동작 상태에 따라 상기 스위칭 소자가 구동되어 초기 전원공급시 공급전원이 비교전압으로 발생되고, 주회로 동작시 스위칭되어 공급전원의 분압전압이 비교전압으로 발생된다. 또한 기준전압은 정전압 신호가 분압되어 일정 기준전압으로 발생된다. 그러면 비교기는 비교전압과 기준전압의 상태를 비교하여 제어회로의 동작 온/오프신호를 발생한다.When the initial power is supplied in the voltage protection circuit, the operation of the auxiliary circuit is controlled by monitoring the state of the operating power after starting the operation of the main circuit. To this end, the switching element is driven according to the operating state of the main circuit, so that the supply power is generated as a comparison voltage when the initial power is supplied, and the divided voltage of the supply power is generated as the comparison voltage when the main circuit is operated. In addition, the reference voltage is generated as a constant reference voltage by dividing the constant voltage signal. The comparator then compares the state of the comparison voltage with the reference voltage to generate an operation on / off signal of the control circuit.

Description

전압 보호 회로Voltage protection circuit

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

제2도는 본 발명의 회로도.2 is a circuit diagram of the present invention.

Claims (3)

주회로의 동작상태를 감지하여 기능을 수행하는 전압보호 회로에 있어서, 스위칭 소자를 구비하며, 상기 주회로의 동작상태에 따라 상기 스위칭 소자가 구동되어 초기 전원공급시 공급전원을 비교전압으로 발생하고 상기 주회로 동작시 스위칭되어 공급전원이 분압전압을 비교전압으로 발생하는 수단과, 상기 비교전압과 기준저납의 상태를 비교하여 제어회로의 동작 온/오프 신호를 발생하는 비교수단과, 상기 주회로의 동작시 발생되는 신호를 소정시간 지연한후 상기 비교 전압 발생수단의 스위칭 소자를 온시키는 수단으로 구성된 것을 특징으로 하는 보조 전압보호회로.A voltage protection circuit for performing a function by sensing an operating state of a main circuit, comprising: a switching element, wherein the switching element is driven according to the operating state of the main circuit to generate supply power as a comparison voltage during initial power supply. Means for switching during the operation of the main circuit so that a supply power source generates a divided voltage as a comparison voltage, comparing means for comparing the comparison voltage and the state of the reference storage to generate an operation on / off signal of a control circuit; And a means for turning on the switching element of said comparison voltage generating means after delaying a signal generated during operation of said predetermined time. 전압 보호회로에 있어서, 공급전원을 분압하여 비교 전압을 발생하는 수단과, 정전압 전원을 분압하여 기준전압을 발생하는 수단과, 상기 비교전압과 기준전압을 비교하여 제어회로의 동작 온/오프 신호를 발생하는 비교수단과, 주회로의 동작 개시 유무를 감지하여 상기 주회로 동장시 동작 개시 신호를 발생하는 수단과, 상기 비교 전압 발생수단과 접지단 사이에 연결되며, 상기 동작 개시 신호를 스위치 제어신호로 수신하여 상기 동작 개시신호가 발생되지 않을시 오프 스위칭되어 상기 비교전압을 공급전원 레벨로 발생하고, 상기 동작 개시신호 수신시 온 스위칭되어 상기 분압된 비교전압을 발생하는 스위치로 구성된 것을 특징으로 하는 보조전압 보호회로.A voltage protection circuit comprising: means for generating a comparison voltage by dividing a supply power supply; means for generating a reference voltage by dividing a constant voltage power supply; and comparing the comparison voltage with a reference voltage to generate an operation on / off signal of a control circuit. Generating means for detecting the operation of the main circuit and generating an operation start signal when the main circuit is driven, and being connected between the comparison voltage generating means and a ground terminal, and converting the operation start signal into a switch control signal. And a switch configured to switch off when the operation start signal is not generated to generate the comparison voltage at a supply power level, and to switch on when the operation start signal is received to generate the divided comparison voltage. Auxiliary voltage protection circuit. 제2항에 있어서, 스위치가, 상기 비교전압 발생수단에 애노드가 연결되고 접지단에 캐소드가 연결되며, 상기 동작 개시 신호를 게이트단으로 수신하는 실리콘 제어 정류기임을 특징으로 하는 보조전압 보호회로.The auxiliary voltage protection circuit according to claim 2, wherein the switch is a silicon controlled rectifier having an anode connected to the comparison voltage generating means, a cathode connected to a ground terminal, and receiving the operation start signal at a gate terminal. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019910021273A 1991-11-26 1991-11-26 Voltage protection circuit KR930010674A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019910021273A KR930010674A (en) 1991-11-26 1991-11-26 Voltage protection circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019910021273A KR930010674A (en) 1991-11-26 1991-11-26 Voltage protection circuit

Publications (1)

Publication Number Publication Date
KR930010674A true KR930010674A (en) 1993-06-23

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Application Number Title Priority Date Filing Date
KR1019910021273A KR930010674A (en) 1991-11-26 1991-11-26 Voltage protection circuit

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KR (1) KR930010674A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100546327B1 (en) * 2003-06-03 2006-01-26 삼성전자주식회사 Feed control system and method thereof
KR100702153B1 (en) * 2005-07-06 2007-04-02 엘지이노텍 주식회사 power supply for multi-output

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100546327B1 (en) * 2003-06-03 2006-01-26 삼성전자주식회사 Feed control system and method thereof
KR100702153B1 (en) * 2005-07-06 2007-04-02 엘지이노텍 주식회사 power supply for multi-output

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