JPS5625376A - Direct current-to-direct current converting circuit - Google Patents

Direct current-to-direct current converting circuit

Info

Publication number
JPS5625376A
JPS5625376A JP9928879A JP9928879A JPS5625376A JP S5625376 A JPS5625376 A JP S5625376A JP 9928879 A JP9928879 A JP 9928879A JP 9928879 A JP9928879 A JP 9928879A JP S5625376 A JPS5625376 A JP S5625376A
Authority
JP
Japan
Prior art keywords
transistor
direct current
transformer
winding
rectifier
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
JP9928879A
Other languages
Japanese (ja)
Inventor
Yoshihiko Fukuhara
Kazuo Tsukamoto
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP9928879A priority Critical patent/JPS5625376A/en
Publication of JPS5625376A publication Critical patent/JPS5625376A/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
    • H02M3/338—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 in a self-oscillating arrangement

Abstract

PURPOSE:To improve performance while decreasing the number of parts forming a circuit by a mechanism wherein a variable impedance element is connected in parallel with a rectifier connected to the second winding of a transformer, and the variable impedance element is controlled by output voltage. CONSTITUTION:A transistor 23 does not work actively because inverse bias is applied to a collector of the transistor 23 only by the voltage drop value in the forward direction of a rectifier 22 against an emitter of the transistor 23 at the time when a transistor 2 is conducted and voltage induced to the second winding n12 of a transformer 21 is rectified by means of the rectifier 22. When the transistor 2 is interrupted, currents previously flowing through a retardation coil 12 continuously flow through a recrifier 11. The action of the transistor 23 can be made active for the period. Exciting currents accumulated at the first winding n11 of the transformer 21 are reset when the transistor 2 is conducted.
JP9928879A 1979-08-03 1979-08-03 Direct current-to-direct current converting circuit Pending JPS5625376A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9928879A JPS5625376A (en) 1979-08-03 1979-08-03 Direct current-to-direct current converting circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9928879A JPS5625376A (en) 1979-08-03 1979-08-03 Direct current-to-direct current converting circuit

Publications (1)

Publication Number Publication Date
JPS5625376A true JPS5625376A (en) 1981-03-11

Family

ID=14243453

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9928879A Pending JPS5625376A (en) 1979-08-03 1979-08-03 Direct current-to-direct current converting circuit

Country Status (1)

Country Link
JP (1) JPS5625376A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58116070A (en) * 1981-12-29 1983-07-11 Fujitsu Ltd Dc/dc converter
JPS6122757A (en) * 1984-07-06 1986-01-31 Kurume Denshi Kogyo Kk Dc/dc converter
JPS61192818U (en) * 1985-05-23 1986-12-01

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5479420A (en) * 1977-12-08 1979-06-25 Gen Corp Converter

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5479420A (en) * 1977-12-08 1979-06-25 Gen Corp Converter

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58116070A (en) * 1981-12-29 1983-07-11 Fujitsu Ltd Dc/dc converter
JPS6122757A (en) * 1984-07-06 1986-01-31 Kurume Denshi Kogyo Kk Dc/dc converter
JPS61192818U (en) * 1985-05-23 1986-12-01
JPH045293Y2 (en) * 1985-05-23 1992-02-14

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