KR970008832B1 - Low-loss auxiliary power supply circuit - Google Patents

Low-loss auxiliary power supply circuit Download PDF

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Publication number
KR970008832B1
KR970008832B1 KR94014184A KR19940014184A KR970008832B1 KR 970008832 B1 KR970008832 B1 KR 970008832B1 KR 94014184 A KR94014184 A KR 94014184A KR 19940014184 A KR19940014184 A KR 19940014184A KR 970008832 B1 KR970008832 B1 KR 970008832B1
Authority
KR
South Korea
Prior art keywords
turned
thyristor
zener diode
voltage
condenser
Prior art date
Application number
KR94014184A
Other languages
Korean (ko)
Other versions
KR960003014A (en
Inventor
Dong-Young Hu
Original Assignee
Daewoo Electronics Co Ltd
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 Daewoo Electronics Co Ltd filed Critical Daewoo Electronics Co Ltd
Priority to KR94014184A priority Critical patent/KR970008832B1/en
Publication of KR960003014A publication Critical patent/KR960003014A/en
Application granted granted Critical
Publication of KR970008832B1 publication Critical patent/KR970008832B1/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
    • H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters

Landscapes

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

Abstract

The present invention provides a low-loss auxiliary power circuit that favorably operates in a wide range of input voltage variation without regard to the output voltage variable range and can operate without any switch and transformer. This circuit includes a first zener diode receiving rectified power and limiting the power level; a time constant part making the voltage be raised for a given period of time from a given point by the input power; a second zener diode turned on when reaching to a given voltage by the time constant part; a first thyristor turned on when the second zener diode is turned on; a first condenser that begins to be charged when the first thyristor is turned on; a third zener diode limiting the first condenser's charged voltage; a second thyristor turned on in a given period of time as the first thyristor is turned on; and a first resistor making the second condenser be discharged shortly as the second thyristor is turned on.
KR94014184A 1994-06-22 1994-06-22 Low-loss auxiliary power supply circuit KR970008832B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR94014184A KR970008832B1 (en) 1994-06-22 1994-06-22 Low-loss auxiliary power supply circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR94014184A KR970008832B1 (en) 1994-06-22 1994-06-22 Low-loss auxiliary power supply circuit

Publications (2)

Publication Number Publication Date
KR960003014A KR960003014A (en) 1996-01-26
KR970008832B1 true KR970008832B1 (en) 1997-05-29

Family

ID=19385869

Family Applications (1)

Application Number Title Priority Date Filing Date
KR94014184A KR970008832B1 (en) 1994-06-22 1994-06-22 Low-loss auxiliary power supply circuit

Country Status (1)

Country Link
KR (1) KR970008832B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990012878A (en) * 1997-07-31 1999-02-25 이형도 Protection circuit of power converter

Also Published As

Publication number Publication date
KR960003014A (en) 1996-01-26

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