JPS5740365A - Dc-dc converter - Google Patents

Dc-dc converter

Info

Publication number
JPS5740365A
JPS5740365A JP11524980A JP11524980A JPS5740365A JP S5740365 A JPS5740365 A JP S5740365A JP 11524980 A JP11524980 A JP 11524980A JP 11524980 A JP11524980 A JP 11524980A JP S5740365 A JPS5740365 A JP S5740365A
Authority
JP
Japan
Prior art keywords
transformer
winding
current
transistor
oscillating frequency
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
JP11524980A
Other languages
Japanese (ja)
Inventor
Mikio Maeda
Katsuhiko Higashiyama
Masahiro Kosaka
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP11524980A priority Critical patent/JPS5740365A/en
Priority to DE19813132642 priority patent/DE3132642A1/en
Priority to GB8125366A priority patent/GB2086679B/en
Publication of JPS5740365A publication Critical patent/JPS5740365A/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
    • H02M3/3382—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 in a push-pull circuit arrangement
    • H02M3/3384—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 in a push-pull circuit arrangement of the parallel type

Abstract

PURPOSE:To make it possible to give a base current which is proportional to a collector current, by providing a transformer for current feedback and making the oscillating frequencly constant in the range from no load to the full load. CONSTITUTION:In the current feedback transformer T3, a winding nf3 is connected to a collector of a transistor Q2 and to a primary winding n2 of a conversion transformer T1, and a winding nf4 is cnnected to a switching transistor Q1 and a promary winding n1 of the conversion transformer T1. Base current supplying windings nf5 and nd6 are connected to the bases and the emitters of the transistors Q2 and Q1. In this constitution, the oscillating frequency is determined by a driving transformer 12, the base current required to saturate the transistor can be sufficiently supplied by the current feedback transformer T3 regardless of the oscillating frequency, and the oscillating frequency can be kept at a constant value under any loading condition.
JP11524980A 1980-08-20 1980-08-20 Dc-dc converter Pending JPS5740365A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP11524980A JPS5740365A (en) 1980-08-20 1980-08-20 Dc-dc converter
DE19813132642 DE3132642A1 (en) 1980-08-20 1981-08-18 "DC VOLTAGE CONVERTER"
GB8125366A GB2086679B (en) 1980-08-20 1981-08-19 Dc to dc converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11524980A JPS5740365A (en) 1980-08-20 1980-08-20 Dc-dc converter

Publications (1)

Publication Number Publication Date
JPS5740365A true JPS5740365A (en) 1982-03-05

Family

ID=14658015

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11524980A Pending JPS5740365A (en) 1980-08-20 1980-08-20 Dc-dc converter

Country Status (1)

Country Link
JP (1) JPS5740365A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63210404A (en) * 1986-03-03 1988-09-01 ヒルテイ・アクチエンゲゼルシヤフト Nail holding band for piston type nailing device
JPH0587111A (en) * 1991-03-05 1993-04-06 Illinois Tool Works Inc <Itw> Fastener strip for fastener drive-fitting tool

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63210404A (en) * 1986-03-03 1988-09-01 ヒルテイ・アクチエンゲゼルシヤフト Nail holding band for piston type nailing device
JPH0587111A (en) * 1991-03-05 1993-04-06 Illinois Tool Works Inc <Itw> Fastener strip for fastener drive-fitting tool

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