KR910002082A - Active Dummy Load Circuit in Switched Mode Power Supplies - Google Patents

Active Dummy Load Circuit in Switched Mode Power Supplies Download PDF

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Publication number
KR910002082A
KR910002082A KR1019890008243A KR890008243A KR910002082A KR 910002082 A KR910002082 A KR 910002082A KR 1019890008243 A KR1019890008243 A KR 1019890008243A KR 890008243 A KR890008243 A KR 890008243A KR 910002082 A KR910002082 A KR 910002082A
Authority
KR
South Korea
Prior art keywords
dummy load
output
load circuit
active dummy
mode power
Prior art date
Application number
KR1019890008243A
Other languages
Korean (ko)
Other versions
KR910005464B1 (en
Inventor
박용호
Original Assignee
서주인
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 서주인, 삼성전기 주식회사 filed Critical 서주인
Priority to KR1019890008243A priority Critical patent/KR910005464B1/en
Publication of KR910002082A publication Critical patent/KR910002082A/en
Application granted granted Critical
Publication of KR910005464B1 publication Critical patent/KR910005464B1/en

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)

Abstract

내용 없음No content

Description

스위칭 모드 전원장치의 능동 더미(Dummy)부하회로Active Dummy Load Circuit in Switched Mode Power Supplies

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

제 1도는 선행기술에 의한 스위칭 모드 전원장치의 수동 더미부하 회로도,1 is a passive dummy load circuit diagram of a switching mode power supply according to the prior art,

제 2도는 본 발명에 따른 스위칭 모드 전원장치의 능동 더미(Dummy)부하 회로도,2 is an active dummy load circuit diagram of a switched mode power supply according to the present invention;

Claims (1)

플라이백 변압기(40)의 2차측 권선에 유기되는 전압을 증폭하여 출력단(Vo1)에 인가하도록 스위칭 전력용 트랜지스터(Q1)등으로 구성되는 출력전압제어부(10)와, 각 출력단에 연결된 시스템을 순차개폐할 때 출력되는 제어신호(PC)에 의해서 상기 출력전압제어부(10)내의 스위칭 전력용 트랜지스터(Q1)의 작동을 제어하도록 소 신호용 트랜지스터(Q2) 및 저항(R3)(R4)로 구성되는 출력전압 제어부(20)등으로 구성된 것에 있어서, 상기 출력전압 제어부(20)내의 소신호용 트랜지스터(Q2)의 작동에 따라 능동더미부하부(30)내의 소신호용 트랜지스터(Q3)가 연동되도록 하여 수동더미부하저항(RL)에 흐흐는 전류를 제어하도록 구성됨을 특징으로 하는 스위칭 모드 전원장치의 능동더미 부하회로.Output voltage control unit 10 composed of switching power transistor Q1 and the like to amplify the voltage induced in the secondary winding of the flyback transformer 40 and apply it to the output terminal Vo1, and a system connected to each output terminal in sequence An output composed of a small signal transistor Q2 and a resistor R3 and R4 so as to control the operation of the switching power transistor Q1 in the output voltage control unit 10 by a control signal PC output when opening and closing. In the configuration of the voltage controller 20 or the like, the passive signal load is caused by the small signal transistor Q3 in the active dummy load unit 30 interlocked with the operation of the small signal transistor Q2 in the output voltage controller 20. An active dummy load circuit of a switched mode power supply, characterized in that it is configured to control the current flowing in a resistor (RL). ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019890008243A 1989-06-15 1989-06-15 Switching mode power supply KR910005464B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019890008243A KR910005464B1 (en) 1989-06-15 1989-06-15 Switching mode power supply

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019890008243A KR910005464B1 (en) 1989-06-15 1989-06-15 Switching mode power supply

Publications (2)

Publication Number Publication Date
KR910002082A true KR910002082A (en) 1991-01-31
KR910005464B1 KR910005464B1 (en) 1991-07-29

Family

ID=19287126

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019890008243A KR910005464B1 (en) 1989-06-15 1989-06-15 Switching mode power supply

Country Status (1)

Country Link
KR (1) KR910005464B1 (en)

Also Published As

Publication number Publication date
KR910005464B1 (en) 1991-07-29

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