JPS55125078A - Switching power supply - Google Patents

Switching power supply

Info

Publication number
JPS55125078A
JPS55125078A JP3141379A JP3141379A JPS55125078A JP S55125078 A JPS55125078 A JP S55125078A JP 3141379 A JP3141379 A JP 3141379A JP 3141379 A JP3141379 A JP 3141379A JP S55125078 A JPS55125078 A JP S55125078A
Authority
JP
Japan
Prior art keywords
output
transistor
error amplifier
controlled
power supply
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
JP3141379A
Other languages
Japanese (ja)
Other versions
JPS5914981B2 (en
Inventor
Motoyoshi Fujita
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.)
TDK Corp
Original Assignee
TDK 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 TDK Corp filed Critical TDK Corp
Priority to JP54031413A priority Critical patent/JPS5914981B2/en
Publication of JPS55125078A publication Critical patent/JPS55125078A/en
Publication of JPS5914981B2 publication Critical patent/JPS5914981B2/en
Expired 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
    • H02M3/33507—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 with automatic control of the output voltage or current, e.g. flyback converters
    • H02M3/33523—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 with automatic control of the output voltage or current, e.g. flyback converters with galvanic isolation between input and output of both the power stage and the feedback loop

Landscapes

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

Abstract

PURPOSE:To stabilize a converter output in good efficiency of power conversion by a method wherein the converter output is detected on an error amplifier, and a fly-back voltage is controlled by an output of the error amplifier. CONSTITUTION:A blocking oscillation circuit is constituted with a transistor 1 and a transformer 4. An output voltage of the blocking oscillation circuit is applied to an error amplifier comprising a zener diode 9 and a transistor 3. The transistor 3 is controlled by an output of the error amplifier, and by controlling a charge of a condenser 10 through the collector, an off period of the blocking oscillation transistor 1 is controlled and the output voltage is stabilized.
JP54031413A 1979-03-17 1979-03-17 switching power supply Expired JPS5914981B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54031413A JPS5914981B2 (en) 1979-03-17 1979-03-17 switching power supply

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54031413A JPS5914981B2 (en) 1979-03-17 1979-03-17 switching power supply

Publications (2)

Publication Number Publication Date
JPS55125078A true JPS55125078A (en) 1980-09-26
JPS5914981B2 JPS5914981B2 (en) 1984-04-06

Family

ID=12330564

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54031413A Expired JPS5914981B2 (en) 1979-03-17 1979-03-17 switching power supply

Country Status (1)

Country Link
JP (1) JPS5914981B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5816314A (en) * 1981-07-21 1983-01-31 Fujitsu Ltd Driving circuit of field effect type transistor
JPH02273073A (en) * 1989-03-07 1990-11-07 Rca Licensing Corp Switch mode source

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5816314A (en) * 1981-07-21 1983-01-31 Fujitsu Ltd Driving circuit of field effect type transistor
JPH02273073A (en) * 1989-03-07 1990-11-07 Rca Licensing Corp Switch mode source

Also Published As

Publication number Publication date
JPS5914981B2 (en) 1984-04-06

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