KR940027264A - Power cutoff control circuit - Google Patents

Power cutoff control circuit Download PDF

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Publication number
KR940027264A
KR940027264A KR1019930008259A KR930008259A KR940027264A KR 940027264 A KR940027264 A KR 940027264A KR 1019930008259 A KR1019930008259 A KR 1019930008259A KR 930008259 A KR930008259 A KR 930008259A KR 940027264 A KR940027264 A KR 940027264A
Authority
KR
South Korea
Prior art keywords
resistor
control circuit
power
main
comparator
Prior art date
Application number
KR1019930008259A
Other languages
Korean (ko)
Inventor
이수길
Original Assignee
윤종용
삼성전기 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 윤종용, 삼성전기 주식회사 filed Critical 윤종용
Priority to KR1019930008259A priority Critical patent/KR940027264A/en
Publication of KR940027264A publication Critical patent/KR940027264A/en

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Abstract

이 발명은 전원차단 제어회로에 관한 것으로서, 메인 전원이 차단된 후 시스템 각부에 잔류하는 전압에 제거되는 시간을 제어하기 위하여 사용 전위값이 낮은 부분의 턴-오프 시간을 지연시키는 콘덴서와, 메인 전원과 시스템의 사용부분의 잔류 전원을 비교하여 시스템 전체를 스위칭하는 메인 스위치를 제어하는 비교기를 구비하였다. 이 발명 옴전위를 사용하는 모든 시스템에 적용 가능하고, 특히 휴대용 미니 컴퓨터(노우트 북)에 효과적으로 사용 가능하다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power cut control circuit, comprising: a condenser for delaying the turn-off time of a portion having a low use potential value in order to control the time for removing the voltage remaining in each part of the system after the main power is cut off; And a comparator for controlling the main switch for switching the whole system by comparing the residual power of the system with the remaining power supply. The present invention is applicable to all systems using the ohmic potential, and is particularly effective for portable minicomputers (notebooks).

Description

전원차단 제어회로Power cutoff control circuit

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

제 1 도는 전원 차단 제어회로가 구성되지 않은 경우의 파형 특성도, 제 2 도는 이 발명에 따른 전원차단 제어회로를 나타내는 회로도.1 is a waveform characteristic diagram when no power-off control circuit is configured, and FIG. 2 is a circuit diagram showing a power-off control circuit according to the present invention.

Claims (1)

메인전압 입력단자를 통하여 입력된 메인전원을 분압하는 저항과 ; 상기 저항을 통하여 분압된 전압을 충전함으로써 일시적으로 지연시켜 후단에 인가하는 콘덴서와 ; 상기 저항에 의해 분압된 전압을 반전단으로 인가받고 저항에 의해 분압된 전압을 비반전단으로 인가받아 비교한 후 제어신호를 출력하는 비교기와 ; 상기 비교기의 출력을 베이스 단자로 인가받아 스위칭하는 트랜지스터와 ; 상기 트랜지스터의 스위칭 작용에 따라 트랜스포머로 인가된 전압을 스위칭하는 메인 트랜지스터를 구비하는 전원 차단 제어회로.A resistor for dividing the main power inputted through the main voltage input terminal; A condenser for temporarily applying a voltage divided by the resistor to be applied to the rear end temporarily; A comparator for applying the voltage divided by the resistor to the inverting stage and comparing the voltage divided by the resistor to the non-inverting stage to compare and output a control signal; A transistor configured to switch the output of the comparator by being applied to a base terminal; And a main transistor for switching the voltage applied to the transformer according to the switching action of the transistor. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930008259A 1993-05-14 1993-05-14 Power cutoff control circuit KR940027264A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930008259A KR940027264A (en) 1993-05-14 1993-05-14 Power cutoff control circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930008259A KR940027264A (en) 1993-05-14 1993-05-14 Power cutoff control circuit

Publications (1)

Publication Number Publication Date
KR940027264A true KR940027264A (en) 1994-12-10

Family

ID=67137423

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019930008259A KR940027264A (en) 1993-05-14 1993-05-14 Power cutoff control circuit

Country Status (1)

Country Link
KR (1) KR940027264A (en)

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