JPS56148178A - Switching constant voltage source - Google Patents

Switching constant voltage source

Info

Publication number
JPS56148178A
JPS56148178A JP5046680A JP5046680A JPS56148178A JP S56148178 A JPS56148178 A JP S56148178A JP 5046680 A JP5046680 A JP 5046680A JP 5046680 A JP5046680 A JP 5046680A JP S56148178 A JPS56148178 A JP S56148178A
Authority
JP
Japan
Prior art keywords
voltage
main circuit
fed
capacity
circuit capacitor
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
JP5046680A
Other languages
Japanese (ja)
Inventor
Akira Kobayashi
Noboru Ogawa
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 JP5046680A priority Critical patent/JPS56148178A/en
Publication of JPS56148178A publication Critical patent/JPS56148178A/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
    • H02M3/337—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)
  • Dc-Dc Converters (AREA)

Abstract

PURPOSE:To arrest a detection delay time and keep a capacity of a main circuit capacitor minimum by a method wherein a drive stop signal is output when a terminal voltage of the main circuit capacitor becomes lower than a prescribed value. CONSTITUTION:Pulse signals A, B are fed from a control circuit 38 to transistors 33A, 33B respectively, and as a result, a voltage V2 is fed to a secondary winding of a transformer 34 against a voltage V1 of the main circuit capacitor 32. On the other hand, signals C are made output from the control circuit 38 and pulses F are fed as outputs from a delay trigger pulse output circuit 42. In addition, the set voltage and the voltage V2 are compared in a comparator 41, and the outputs E and the pulses F of the comparator feed signals G through AND circuit. Thereby, the voltage V2 is also decreased as the voltage V1 of the main circuit capacitor. Accordingly, since the operating frequencies are generally of the order of 20- 50kHz, the detected abnormal delay times are approximately 50-20mus, which are so small as being ignored, so that the capacity with the minimum capacity can be selected.
JP5046680A 1980-04-18 1980-04-18 Switching constant voltage source Pending JPS56148178A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5046680A JPS56148178A (en) 1980-04-18 1980-04-18 Switching constant voltage source

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5046680A JPS56148178A (en) 1980-04-18 1980-04-18 Switching constant voltage source

Publications (1)

Publication Number Publication Date
JPS56148178A true JPS56148178A (en) 1981-11-17

Family

ID=12859651

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5046680A Pending JPS56148178A (en) 1980-04-18 1980-04-18 Switching constant voltage source

Country Status (1)

Country Link
JP (1) JPS56148178A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62165790U (en) * 1986-04-09 1987-10-21
US4985818A (en) * 1989-06-30 1991-01-15 Siemens Aktiengesellschaft DC voltage converter with formation of the actual current value
JP2009100591A (en) * 2007-10-18 2009-05-07 Sanken Electric Co Ltd Switching power supply device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62165790U (en) * 1986-04-09 1987-10-21
US4985818A (en) * 1989-06-30 1991-01-15 Siemens Aktiengesellschaft DC voltage converter with formation of the actual current value
JP2009100591A (en) * 2007-10-18 2009-05-07 Sanken Electric Co Ltd Switching power supply device

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