JPS57136228A - Switching regulator - Google Patents

Switching regulator

Info

Publication number
JPS57136228A
JPS57136228A JP2118681A JP2118681A JPS57136228A JP S57136228 A JPS57136228 A JP S57136228A JP 2118681 A JP2118681 A JP 2118681A JP 2118681 A JP2118681 A JP 2118681A JP S57136228 A JPS57136228 A JP S57136228A
Authority
JP
Japan
Prior art keywords
winding
voltage
output
transformer
modulator
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
JP2118681A
Other languages
Japanese (ja)
Inventor
Mitsuo Osawa
Akio Koizumi
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP2118681A priority Critical patent/JPS57136228A/en
Publication of JPS57136228A publication Critical patent/JPS57136228A/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 increase the regulation and to reduce the degree of heat generation, by using a foil type winding for the transformer of a switching regulator and setting a foil type winding having at least a turn at the secondary side to extract the minimum voltage. CONSTITUTION:The unstabilized DC voltage obtained by rectifying the commercial power supply voltage is applied to a terminal 21 and then to the collector of a switching transistor TR23 via a primary winding 22a of a transformer 22 using a foil type winding. The emitter of the TR23 is earthed, and the output of a pulse duration modulator 24 is applied to the base of the TR23. The windings 22b-22e plus an error detecting winding 22f are provided at the secondary side of a transformer 22 in accordance with the voltage to be extracted. The windings 22b and 22c of the minimum output voltage plus the winding 22f have one turn, respectively. The output of the winding 22f receives the rectification/ smoothing 33 to be supplied to the modulator 24. The pulse duration of the modulator 24 is controlled according to the DC output, and the ON time of the TR23 is controlled to deliver the stable DC voltage to output terminals 26, 28, 30 and 32, respectively.
JP2118681A 1981-02-16 1981-02-16 Switching regulator Pending JPS57136228A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2118681A JPS57136228A (en) 1981-02-16 1981-02-16 Switching regulator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2118681A JPS57136228A (en) 1981-02-16 1981-02-16 Switching regulator

Publications (1)

Publication Number Publication Date
JPS57136228A true JPS57136228A (en) 1982-08-23

Family

ID=12047911

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2118681A Pending JPS57136228A (en) 1981-02-16 1981-02-16 Switching regulator

Country Status (1)

Country Link
JP (1) JPS57136228A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5545248B2 (en) * 1975-04-04 1980-11-17

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5545248B2 (en) * 1975-04-04 1980-11-17

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