KR960016088A - Auxiliary power supply circuit of power supply - Google Patents

Auxiliary power supply circuit of power supply Download PDF

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Publication number
KR960016088A
KR960016088A KR1019940027903A KR19940027903A KR960016088A KR 960016088 A KR960016088 A KR 960016088A KR 1019940027903 A KR1019940027903 A KR 1019940027903A KR 19940027903 A KR19940027903 A KR 19940027903A KR 960016088 A KR960016088 A KR 960016088A
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KR
South Korea
Prior art keywords
switching
output
power supply
voltage
current
Prior art date
Application number
KR1019940027903A
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Korean (ko)
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KR970010613B1 (en
Inventor
허동영
Original Assignee
배순훈
대우전자 주식회사
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Application filed by 배순훈, 대우전자 주식회사 filed Critical 배순훈
Priority to KR1019940027903A priority Critical patent/KR970010613B1/en
Publication of KR960016088A publication Critical patent/KR960016088A/en
Application granted granted Critical
Publication of KR970010613B1 publication Critical patent/KR970010613B1/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
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
    • H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
    • H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
    • H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
    • 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

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

Abstract

본 발명은 전원공급장치에 관한 것으로서, 스위칭용 트랜지스터를 제어하게 위한 제어부에 전원을 공급시키기 위한 전원공급장치의 보조전원공급 회로에 관한 것이다. 이와같은 본 발명은 상기 브리지 다이오드의 출력 전압을 반파 정류시키는 정류수단과, 상기 정류수단에서 출력되는 전압이 설정된 전압 이상이되면 제어신호가 출력되어 보조전원의 출력을 제어하는 제어수단과, 상기 제어수단에서 출력되는 제어신호에 의해 스위칭되어 상기 정류수단의 출력전압이 상기 제어부에 인가되는 스위칭 수단과, 상기 스위칭수단의 스위칭 상태에 의해 스위칭되어 제어수단의 제어신호를 리셋시키는 리셋수단과, 상기 정류수단에서 출력되는 전류를 분배시킨 후 필터시키는 필터수단과, 상기 필터수단에서 출력되는 전류에 따라 제어수단에 인가되는 전류가 제어되어 입력 전압의 넓은 범위에서도 항상 일정한 보조전원을 출력시키는 전류제어 수단으로 구성된다.The present invention relates to a power supply, and more particularly, to an auxiliary power supply circuit of a power supply for supplying power to a control unit for controlling a switching transistor. As described above, the present invention provides rectifying means for half-wave rectifying the output voltage of the bridge diode, control means for outputting a control signal when the voltage output from the rectifying means is equal to or higher than a set voltage, and controlling the output of the auxiliary power source. Switching means for switching by a control signal output from the switching means, the output voltage of the rectifying means being applied to the controller, reset means for resetting the control signal of the control means by switching by the switching state of the switching means, and the rectifying means. Filter means for distributing the current output from the filter and filtering, and a current control means for controlling the current applied to the control means according to the current output from the filter means to always output a constant auxiliary power even in a wide range of input voltage. do.

Description

전원공급장치의 보조전원공급 회로Auxiliary power supply circuit of power supply

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제2도는 본 발명에 따른 전원공급장치의 보조전원공급 회로도.2 is an auxiliary power supply circuit diagram of a power supply apparatus according to the present invention.

Claims (2)

입력되는 교류전원이 브리지 다이오드에 의해 전파 정류되고, 트랜스 포머에 의해 여자된 전압에 의해 트랜지스터가 스위칭에 의해 구동되는 트랜스포머의 여자된 전압이 반파 정류된 후 제어부에 인가되어 트랜지스터의 스위칭에 제어되는 전원공급장치에 있어서, 상기 브리지 다이오드의 출력 전압을 반파 정류시키는 정류 수단과, 상기 정류수단에서 출력되는 전압이 설정된 전압 이상되면 제어신호가 출력되어 보조전원의 출력을 제어하는 제어수단과, 상기 제어수단에서 출력되는 제어신호에 의해 스위칭되어 상기 정류수단의 출력전압이 상기 제어부에 인가되는 스위칭 수단과, 상기 스위칭 수단의 스위칭 상태에 의해 스위칭되어 제어수단의 제어신호를 리셋시키는 리셋수단과, 상기 정류수단에서 출력되는 전류를 분배시킨 후 필터시키는 필터 수단과, 상기 필터 수단에서 출력되는 전류에 따라 제어수단에 인가되는 전류가 제어되어 입력전압의 넓은 범위에서도 항상 일정한 보조전원을 출력시키는 전류 제어 수단으로 구성됨을 특징으로 하는 전원공급장치의 보조전원공급 회로.The input AC power is full-wave rectified by the bridge diode, the excited voltage of the transformer driven by the switching of the transistor by the voltage excited by the transformer is half-wave rectified and applied to the control unit to control the switching of the transistor. In the supply apparatus, Rectifying means for half-wave rectifying the output voltage of the bridge diode, Control means for controlling the output of the auxiliary power supply by outputting a control signal when the voltage output from the rectifying means is more than the set voltage, and the control means Switching means for switching by a control signal output from the switching means, the output voltage of the rectifying means being applied to the controller, reset means for switching the control signal of the control means by switching by the switching state of the switching means, and the rectifying means. Filter to distribute the current output from the filter Means and a current control means for controlling the current applied to the control means in accordance with the current output from the filter means to always output a constant auxiliary power even in a wide range of the input voltage auxiliary power supply of the power supply device Circuit. 제1항에 있어서, 전류 제어수단은 상기 필터 수단에서 필터된 전압을 바이패스시키는 저항과, 상기 저항에 흐르는 전류에 의해 제어수단에 흐르는 전류가 제어되는 전류미러로 구성됨을 특징으로 하는 전원공급장치의 보조전원공급 회로.The power supply apparatus according to claim 1, wherein the current control means comprises a resistance for bypassing the voltage filtered by the filter means and a current mirror in which a current flowing through the control means is controlled by a current flowing through the resistance. Auxiliary power supply circuit. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940027903A 1994-10-28 1994-10-28 Assistant power supply circuit of a power supply device KR970010613B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940027903A KR970010613B1 (en) 1994-10-28 1994-10-28 Assistant power supply circuit of a power supply device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940027903A KR970010613B1 (en) 1994-10-28 1994-10-28 Assistant power supply circuit of a power supply device

Publications (2)

Publication Number Publication Date
KR960016088A true KR960016088A (en) 1996-05-22
KR970010613B1 KR970010613B1 (en) 1997-06-28

Family

ID=19396323

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019940027903A KR970010613B1 (en) 1994-10-28 1994-10-28 Assistant power supply circuit of a power supply device

Country Status (1)

Country Link
KR (1) KR970010613B1 (en)

Also Published As

Publication number Publication date
KR970010613B1 (en) 1997-06-28

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