KR970057605A - Auxiliary winding voltage circuit - Google Patents

Auxiliary winding voltage circuit Download PDF

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Publication number
KR970057605A
KR970057605A KR1019950054571A KR19950054571A KR970057605A KR 970057605 A KR970057605 A KR 970057605A KR 1019950054571 A KR1019950054571 A KR 1019950054571A KR 19950054571 A KR19950054571 A KR 19950054571A KR 970057605 A KR970057605 A KR 970057605A
Authority
KR
South Korea
Prior art keywords
smps
power
output
voltage circuit
auxiliary winding
Prior art date
Application number
KR1019950054571A
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Korean (ko)
Inventor
주용진
Original Assignee
배순훈
대우전자 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.)
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Publication date
Application filed by 배순훈, 대우전자 주식회사 filed Critical 배순훈
Priority to KR1019950054571A priority Critical patent/KR970057605A/en
Publication of KR970057605A publication Critical patent/KR970057605A/en

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Abstract

본 발명은 보조 권선 전압회로에 관한 것으로, 종래에는 모니터가 정상모드에서 서스팬드 모드로 절환될 때 모니터의 전반적인 동작을 제어하는 마이크로 콘트롤러 유니트에 인가되는 스탠바이 전원을 형성하는 구성이 복잡하였었다. 본 발명은 동작모드가 서스팬드 모드로 전환되었을때 모니터에 안정된 스탠바이 전원을 공급할 수 있도록 하는 것이다.The present invention relates to an auxiliary winding voltage circuit, and has conventionally been complicated in forming a standby power source applied to a microcontroller unit that controls the overall operation of the monitor when the monitor is switched from the normal mode to the suspend mode. The present invention provides a stable standby power supply to the monitor when the operation mode is switched to the suspend mode.

Description

보조 권선 전압회로Auxiliary winding voltage circuit

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

제1도는 본 발명에 따른 회로도1 is a circuit diagram according to the present invention

Claims (3)

외부에서 입력되는 교류전원(AC)을 인가받아 정류/평활하는 정류/평활부(10)와; 상기 정류/평활부(10)의 출력전원에 의해 각기 다른 레벨의 전원을 발생시켜 후단에 공급하는 SMPS(SMPS)와; 상기 SMPS(SMPS)의 2차 측에서 출력되는 전원 레벨을 검출하여 SMPS(SMPS)의 2차 측에서 출력되는 전원을 일정레벨로 유지할 수 있도록 SMPS의 1차 측에 흐르는 전류를 조절하는 파워 조절용 IC(20)와; 모니터의 동작모드가 서스팬드 모드시 마이크로콘트롤러 유니트의 서스팬드 단자(72)에서 출력되는 제어신호를 인가받아 SMPS(SMPS)의 2차 측에서 출력되는 전원을 차단하는 제1절환부(30)를 포함하여 구성된 보조 권선 전압회로에 있어서, 모니터의 동작모드가 오프 모드시 마이크로 컨트롤러 유니트의 제어신호를 인가받아 구동신호를 출력하는 제2구동신호 발생부(80)와; 상기제2구동신호 발생부(80)의 구동신호에 의해 구동하여 SMPS(SMPS)의 2차 측권선(2N2)에서 출력되는 전원을 히터(70)에 공급하는 제3절환부(82)를 더 포함하여 구성되어짐을 특징으로 하는 보조 권선 전압회로.A rectifying / smoothing unit 10 for rectifying / smoothing by receiving an AC power input from the outside; SMPS (SMPS) for generating a different level of power by the output power of the rectifying / smoothing unit 10 to supply to the rear stage; Power control IC that detects the power level output from the secondary side of the SMPS (SMPS) and adjusts the current flowing to the primary side of the SMPS to maintain the power output from the secondary side of the SMPS (SMPS) at a constant level 20; The first switching unit 30 which cuts off the power output from the secondary side of the SMPS by receiving the control signal output from the suspend terminal 72 of the microcontroller unit in the suspend mode of the monitor mode. An auxiliary winding voltage circuit comprising: a second drive signal generator (80) for receiving a control signal of a microcontroller unit and outputting a drive signal when an operation mode of a monitor is in an off mode; Further, a third switching unit 82 is driven by the drive signal of the second driving signal generator 80 to supply power output from the secondary winding 2N2 of the SMPS to the heater 70. Auxiliary winding voltage circuit, characterized in that configured to include. 제1항에 있어서, 상기 제3절환부(82)의 후단에는 히터(70)에 공급되는 과전압을 차단하는 보호부(84)가 구성되어짐을 특징으로 하는 보조 권선 전압회로.2. The auxiliary winding voltage circuit according to claim 1, wherein a protection part (84) is arranged at a rear end of the third switching part (82) to block an overvoltage supplied to the heater (70). 제2항에 있어서, 상기 보호부(84)는 히터(70)에 공급되는 과도 전압을 검출하는 재너 다이오드(ZD2)와; 상기 제어 다이오드(ZD2)의 출력레벨에 따라 동작하여 구동신호 발생부(80)의 동작을 차단하는 트랜지스터(QI3)를 포함하여 구성되어짐을 특징으로 하는 보조 권선 전압회로.3. The protection unit (84) according to claim 2, further comprising: a janner diode (ZD2) for detecting a transient voltage supplied to the heater (70); And a transistor (QI3) for operating according to the output level of the control diode (ZD2) to block the operation of the drive signal generator (80). ※참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: It is to be disclosed based on the initial application.
KR1019950054571A 1995-12-22 1995-12-22 Auxiliary winding voltage circuit KR970057605A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950054571A KR970057605A (en) 1995-12-22 1995-12-22 Auxiliary winding voltage circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950054571A KR970057605A (en) 1995-12-22 1995-12-22 Auxiliary winding voltage circuit

Publications (1)

Publication Number Publication Date
KR970057605A true KR970057605A (en) 1997-07-31

Family

ID=66617429

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950054571A KR970057605A (en) 1995-12-22 1995-12-22 Auxiliary winding voltage circuit

Country Status (1)

Country Link
KR (1) KR970057605A (en)

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