KR970055154A - Switching Mode Power Supplies - Google Patents

Switching Mode Power Supplies Download PDF

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Publication number
KR970055154A
KR970055154A KR1019950046380A KR19950046380A KR970055154A KR 970055154 A KR970055154 A KR 970055154A KR 1019950046380 A KR1019950046380 A KR 1019950046380A KR 19950046380 A KR19950046380 A KR 19950046380A KR 970055154 A KR970055154 A KR 970055154A
Authority
KR
South Korea
Prior art keywords
unit
switching
power
rectifying
power supply
Prior art date
Application number
KR1019950046380A
Other languages
Korean (ko)
Inventor
편대범
Original Assignee
구자흥
Lg 전자 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 구자흥, Lg 전자 주식회사 filed Critical 구자흥
Priority to KR1019950046380A priority Critical patent/KR970055154A/en
Publication of KR970055154A publication Critical patent/KR970055154A/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
    • H02M3/33507—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 with automatic control of the output voltage or current, e.g. flyback 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
    • H02M1/0003—Details of control, feedback or regulation circuits
    • H02M1/0032—Control circuits allowing low power mode operation, e.g. in standby mode
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes

Abstract

본 발명은 대기상태시 소비전력을 극소화하여 전력을 효율적으로 사용할 수 있는 스위칭모드 전원공급 장치에 관한 것이다.The present invention relates to a switching mode power supply device which can efficiently use power by minimizing power consumption in a standby state.

본 발명의 스위칭모드 전원공급 장치는 입력되는 교류전원을 정류하고 평활하는 정류 및 평활부와, 상기 평활된 전원을 온/오프 스위칭하는 제1스위칭부와, 일정전압을 기준으로 상기 정류 및 평활부의 출력을 온/오프 동작하는 제2스위칭부와, 상기 제2스위칭부에 의해 입력되는 1차측 전원을 2차측으로 전달하는 콘버터부와, 상기 콘버터부의 2차측 출력전원을 전원으로 하여 충전되는 백업 배터리와, 상기 콘버터부의 2차측 출력을 전원으로 하여 동작되고, 이 전원공급이 중단되면 상기 백업 배터리의 출력을 전원으로 하여 동작하면서 VCR이 대기모드일때 상기 제1스위칭부를 단속하는 마이컴으로 이루어진다.The switching mode power supply apparatus of the present invention includes a rectifying and smoothing unit for rectifying and smoothing an input AC power, a first switching unit for switching on and off the smoothed power, and the rectifying and smoothing unit based on a constant voltage. A backup battery charged with a second switching unit for turning on / off an output, a converter unit for transmitting primary power inputted by the second switching unit to the secondary side, and a secondary output power of the converter unit as a power source; And a microcomputer that operates the secondary output of the converter unit as a power source and, when the power supply is stopped, operates the output of the backup battery as a power source and controls the first switching unit when the VCR is in the standby mode.

따라서, 이러한 스위칭모드 전원공급 장치는, 일반 스위칭 전원을 필요로 하는 제반 시스템에 유용하게 적용되는 이점이 있다.Therefore, such a switching mode power supply has an advantage that it is usefully applied to all systems requiring a general switching power supply.

Description

스위칭모드 전원공급장치Switching Mode Power Supplies

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

제3도는 본 발명에 따른 스위칭모드 전원공급 장치의 실시예 1에 대한 회로도.3 is a circuit diagram of Embodiment 1 of a switched mode power supply according to the present invention.

제4도는 제3도의 동작에 대한 플로우챠트.4 is a flow chart for the operation of FIG.

제5도는 본 발명에 따른 실시예 2에 대한 회로도.5 is a circuit diagram for Embodiment 2 according to the present invention.

Claims (9)

입력되는 교류전원을 정류하고 평활하는 정류 및 평활부와, 상기 평활된 전원을 온/오프 스위칭하는 제1스위칭부와, 일정전압을 기준으로 상기 정류 및 평활부의 출력을 온/오프 동작하는 제2스위칭부와, 상기 제2스위칭부에 의해 입력되는 1차측 전원을 2차측으로 전달하는 콘버터부와, 상기 콘버터부의 2차측 출력전원을 전원으로 하여 충전되는 백업 배터리와, 상기 콘버터부의 2차측 출력을 전원으로 하여 동작되고, 이 전원공급이 중단되면 상기 백업 배터리의 출력을 전원으로 하여 동작하면서 VCR이 대기모드일때 상기 제1스위칭부를 단속하는 마이컴을 포함하여 이루어짐을 특징으로 하는 스위칭 모드 전원공급장치.A rectifying and smoothing unit for rectifying and smoothing an input AC power, a first switching unit for switching on and off the smoothed power source, and a second for turning on / off an output of the rectifying and smoothing unit based on a predetermined voltage. A switching unit, a converter unit for transmitting primary power input by the second switching unit to the secondary side, a backup battery charged with the secondary output power of the converter unit as a power source, and a secondary output of the converter unit. And a microcomputer for controlling the first switching unit when the VCR is in a standby mode while operating with a power source and operating with the output of the backup battery when the power supply is stopped. 제1항에 있어서, 상기 제1스위칭부는 상기 정류 및 평활부와 상기 제2스위칭부의 전원연결을 온/오프 스위칭함을 특징으로 하는 스위칭 모드 전원공급장치.The switching mode power supply of claim 1, wherein the first switching unit switches on / off power connection between the rectifying and smoothing unit and the second switching unit. 제1항에 있어서, 상기 제1스위칭부는 상기 제2스위칭부의 스위칭 동작을 젱어하여 상기 정류 및 평활부와 상기 콘버터부의 전원연결을 온/오프 스위칭함을 특징으로 하는 스위칭 모드 전원공급장치.2. The switching mode power supply of claim 1, wherein the first switching unit switches on / off the power connection between the rectifying and smoothing unit and the converter unit by bypassing a switching operation of the second switching unit. 3. 제1항에 있어서, 상기 제2스위칭부는 상기 정류 및 평활부와 상기 콘버터부의 전류연결을 온/오프하는 스위치와, 상기 스위치를 일정전압을 기준으로 온/오프 하도록 펄스폭 변조신호를 공급하는 제어 및 구동부를 포함하여 이루어진 것을 특징으로 하는 스위칭 모드 전원공급장치.The control circuit of claim 1, wherein the second switching unit is configured to supply a pulse width modulated signal to turn on / off a current connection of the rectifying and smoothing unit and the converter unit, and to turn the switch on / off based on a predetermined voltage. And a driving unit. 제4항에 있어서, 상기 제1스위칭부는 상기 제어 및 구동부에 공급되는 전원을 온/오프함을 특징으로 하는 스위칭 모드 전원공급장치.The switching mode power supply of claim 4, wherein the first switching unit turns on / off power supplied to the control and driving unit. 제4항에 있어서, 상기 제1스위칭부는 상기 제어 및 구동부에서 상기 스위치에 공급되는 펄스폭 변조신호의 공급을 온/오프함을 특징으로 하는 스위칭 모드 전원공급장치.The switching mode power supply of claim 4, wherein the first switching unit turns on / off a supply of a pulse width modulation signal supplied from the control and driving unit to the switch. 제4항에 있어서, 상기 제1스위칭부는 상기 제어 및 구동부에 펄스폭 변조신호대신 오프신호를 출력하도록 하는 신호를 출력함을 특징으로 하는 스위칭 모드 전원공급장치.5. The switching mode power supply of claim 4, wherein the first switching unit outputs a signal for outputting an off signal instead of a pulse width modulation signal to the control and driving unit. 제7항에 있어서, 제1스위칭부에는 대기모드시 백업 배터리의 전원이 마이컴에 의해 일정주기로 공급됨을 특징으로 하는 스위칭 모드 전원공급장치.The switching mode power supply of claim 7, wherein the power of the backup battery is supplied to the first switching unit at a predetermined cycle by the microcomputer in the standby mode. 제3항에 있어서, 상기 스위칭 동작을 제어하는 제2스위칭부는 정류 및 평활부의 출력전원을 공급받아 상기 제1스위칭부 제어에 의해 제어 및 구동신호를 출력하는 제어 및 구동부와, 상기 제어 및 구동부의 제어에 의해 일정전압을 기준으로 스위칭 하여 상기 정류 및 평활부와 상기 콘버터부의 전원연결을 온/오프하는 스위칭 트랜지스터를 포함하여 이루어짐을 특징으로 하는 스위칭 모드 전원공급장치.The control and driving unit of claim 3, wherein the second switching unit controlling the switching operation receives the output power of the rectifying and smoothing unit, and outputs a control and driving signal by the control of the first switching unit. And a switching transistor for switching on / off the power connection of the rectifying and smoothing unit and the converter unit by switching based on a predetermined voltage by control. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950046380A 1995-12-04 1995-12-04 Switching Mode Power Supplies KR970055154A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100518505B1 (en) * 1997-11-13 2005-11-28 페어차일드코리아반도체 주식회사 Switch mode power supply
KR100923220B1 (en) * 2008-06-04 2009-10-27 (주)골든칩스 Apparatus for reduction of standby power of switching mode power supply

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100518505B1 (en) * 1997-11-13 2005-11-28 페어차일드코리아반도체 주식회사 Switch mode power supply
KR100923220B1 (en) * 2008-06-04 2009-10-27 (주)골든칩스 Apparatus for reduction of standby power of switching mode power supply
WO2009148277A2 (en) * 2008-06-04 2009-12-10 (주)골든칩스 Apparatus for minimizing standby power of switching-mode power supply
WO2009148277A3 (en) * 2008-06-04 2010-03-11 (주)골든칩스 Apparatus for minimizing standby power of switching-mode power supply
CN102057555A (en) * 2008-06-04 2011-05-11 韩商高登吉司电子 Apparatus for minimizing standby power of switching-mode power supply

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