JPS573112A - Output voltage switching system - Google Patents

Output voltage switching system

Info

Publication number
JPS573112A
JPS573112A JP7518580A JP7518580A JPS573112A JP S573112 A JPS573112 A JP S573112A JP 7518580 A JP7518580 A JP 7518580A JP 7518580 A JP7518580 A JP 7518580A JP S573112 A JPS573112 A JP S573112A
Authority
JP
Japan
Prior art keywords
output voltage
resonance circuits
switching
voltage switching
series
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.)
Granted
Application number
JP7518580A
Other languages
Japanese (ja)
Other versions
JPH0126085B2 (en
Inventor
Tamio Onuma
Jun Senda
Toshiyuki Sugiura
Katsuhiko Yamamoto
Masahiro Oshiro
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.)
Fujitsu Ltd
NEC Corp
Nippon Telegraph and Telephone Corp
Original Assignee
Fujitsu Ltd
NEC Corp
Nippon Telegraph and Telephone Corp
Nippon Electric 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 Fujitsu Ltd, NEC Corp, Nippon Telegraph and Telephone Corp, Nippon Electric Co Ltd filed Critical Fujitsu Ltd
Priority to JP7518580A priority Critical patent/JPS573112A/en
Publication of JPS573112A publication Critical patent/JPS573112A/en
Publication of JPH0126085B2 publication Critical patent/JPH0126085B2/ja
Granted 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
    • H02M3/337—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 push-pull configuration
    • H02M3/3372—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 push-pull configuration of the parallel type

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Rectifiers (AREA)
  • Control Of Electrical Variables (AREA)

Abstract

PURPOSE:To reduce the number of switching positions for output voltage switching, by connectin series resonance circuits to respective output windings of a power transformer and by leading out an output voltage switching tap from each connection point. CONSTITUTION:Primary windings N11 and N12 of a power transformer T1 are connected to a driving circuit 10 through transistors TR1 and TR2. Series resonance circuits consisting of reactors L1, L2 and Ln and capacitors C1, C2 and Cn are connected to secondary windings N21, N22 and N2n, and respective resonance circuits are connected in series. A switching terminal 1 switches one of one terminals 1, 2 and n of respective resonance circuits and a teminal 0 selectively. Resonance frequencies of resonance circuits are made equal to prevent the output current for short-circuit of a load RL from changing due to switching of the output voltage range.
JP7518580A 1980-06-04 1980-06-04 Output voltage switching system Granted JPS573112A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7518580A JPS573112A (en) 1980-06-04 1980-06-04 Output voltage switching system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7518580A JPS573112A (en) 1980-06-04 1980-06-04 Output voltage switching system

Publications (2)

Publication Number Publication Date
JPS573112A true JPS573112A (en) 1982-01-08
JPH0126085B2 JPH0126085B2 (en) 1989-05-22

Family

ID=13568885

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7518580A Granted JPS573112A (en) 1980-06-04 1980-06-04 Output voltage switching system

Country Status (1)

Country Link
JP (1) JPS573112A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2476278A (en) * 2009-12-17 2011-06-22 Eltek Valere As Resonant circuit with transformer having three sets of windings

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2476278A (en) * 2009-12-17 2011-06-22 Eltek Valere As Resonant circuit with transformer having three sets of windings
US9240723B2 (en) 2009-12-17 2016-01-19 Eltek As Resonant circuit and resonant DC/DC converter

Also Published As

Publication number Publication date
JPH0126085B2 (en) 1989-05-22

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