JPS5722381A - Switching electric power source circuit - Google Patents

Switching electric power source circuit

Info

Publication number
JPS5722381A
JPS5722381A JP9559380A JP9559380A JPS5722381A JP S5722381 A JPS5722381 A JP S5722381A JP 9559380 A JP9559380 A JP 9559380A JP 9559380 A JP9559380 A JP 9559380A JP S5722381 A JPS5722381 A JP S5722381A
Authority
JP
Japan
Prior art keywords
transistor
power source
electric power
potential
source circuit
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
JP9559380A
Other languages
Japanese (ja)
Inventor
Toshio Nishino
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.)
Tokin Corp
Original Assignee
Tohoku Metal Industries 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 Tohoku Metal Industries Ltd filed Critical Tohoku Metal Industries Ltd
Priority to JP9559380A priority Critical patent/JPS5722381A/en
Publication of JPS5722381A publication Critical patent/JPS5722381A/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

Landscapes

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

Abstract

PURPOSE:To reduce the number of parts constituting a switching electric power source circuit and to contrive to reduce switching loss of a transistor by a method wherein the transistor is made to OFF by an auxiliary electric power source to generate a negative potential. CONSTITUTION:When a transistor Q1' is in ON-state, and the base potential thereof comes to high, a Zener diode D2' conducts, and the transistor Q1' is made to OFF to induce a voltage in windings n2, n3. Out of them, because the winding n2 is connected with a diode D1' as to output a negative potential, this negative potential makes the transistor Q1' to OFF suddenly. This output applys a potential to the base of the transistor Q2 through a pulse generator 0 and a pulse width limiter P being made to act by a negative supply voltage. Because the trasistor Q2 is in ON- state at this time being applied with a potential from a high-tension DC electric power source E1 through a resistor R, the transistor Q2 is made to OFF by a negative potential applied from the pulse width limiter P.
JP9559380A 1980-07-15 1980-07-15 Switching electric power source circuit Pending JPS5722381A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9559380A JPS5722381A (en) 1980-07-15 1980-07-15 Switching electric power source circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9559380A JPS5722381A (en) 1980-07-15 1980-07-15 Switching electric power source circuit

Publications (1)

Publication Number Publication Date
JPS5722381A true JPS5722381A (en) 1982-02-05

Family

ID=14141865

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9559380A Pending JPS5722381A (en) 1980-07-15 1980-07-15 Switching electric power source circuit

Country Status (1)

Country Link
JP (1) JPS5722381A (en)

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