JPS57174715A - Switching power supply - Google Patents

Switching power supply

Info

Publication number
JPS57174715A
JPS57174715A JP5849781A JP5849781A JPS57174715A JP S57174715 A JPS57174715 A JP S57174715A JP 5849781 A JP5849781 A JP 5849781A JP 5849781 A JP5849781 A JP 5849781A JP S57174715 A JPS57174715 A JP S57174715A
Authority
JP
Japan
Prior art keywords
circuit
thyristor
load
supplied
rectifying
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP5849781A
Other languages
Japanese (ja)
Inventor
Kenichi Onda
Kimihito Abe
Takuji Matsumura
Yukio Suzuki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP5849781A priority Critical patent/JPS57174715A/en
Publication of JPS57174715A publication Critical patent/JPS57174715A/en
Pending legal-status Critical Current

Links

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
    • H02M3/33561—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 having more than one ouput with independent control

Landscapes

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

Abstract

PURPOSE:To miniaturize a circuit and to prevent the overvoltage of an ON circuit, by supplying the output of a chopper circuit to the primary side and turning on and off an optional rectifying circuit which rectifies plural ACs given from secondary side with the switching control signal. CONSTITUTION:A DC input is chopped 18 to be supplied to the primary side of a transformer 20. The output of the 1st secondary winding of a transformer 20 is rectified and smoothed 32a through a thyristor 40 to be supplied to a load. A circuit by which the thyristor 40 has the switching is added to cut off the load current to the load 12. The switching control signal 100 that turns on and off a rectifying circuit 24a is supplied to the base of a transistor 48 via a resistance 50. Thus the thyristor 40 is adversely biased to be turned off, and the adverse bias state is released to reset the thyristor 40 to the diode operation. As a result, an optional load current can be selectively turned on and off through a simple constitution of circuit to prevent the danger of voltage rise for a rectifying capacitor at a no-load part.
JP5849781A 1981-04-20 1981-04-20 Switching power supply Pending JPS57174715A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5849781A JPS57174715A (en) 1981-04-20 1981-04-20 Switching power supply

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5849781A JPS57174715A (en) 1981-04-20 1981-04-20 Switching power supply

Publications (1)

Publication Number Publication Date
JPS57174715A true JPS57174715A (en) 1982-10-27

Family

ID=13086052

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5849781A Pending JPS57174715A (en) 1981-04-20 1981-04-20 Switching power supply

Country Status (1)

Country Link
JP (1) JPS57174715A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63109590U (en) * 1986-12-26 1988-07-14
JPS6450683U (en) * 1987-09-22 1989-03-29
JP2009024518A (en) * 2007-07-17 2009-02-05 Tsukasa Sokken Co Ltd Buffer device attached to exhaust system of reciprocal engine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63109590U (en) * 1986-12-26 1988-07-14
JPS6450683U (en) * 1987-09-22 1989-03-29
JP2009024518A (en) * 2007-07-17 2009-02-05 Tsukasa Sokken Co Ltd Buffer device attached to exhaust system of reciprocal engine

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