JPS561770A - Switching power source circuit - Google Patents

Switching power source circuit

Info

Publication number
JPS561770A
JPS561770A JP7720079A JP7720079A JPS561770A JP S561770 A JPS561770 A JP S561770A JP 7720079 A JP7720079 A JP 7720079A JP 7720079 A JP7720079 A JP 7720079A JP S561770 A JPS561770 A JP S561770A
Authority
JP
Japan
Prior art keywords
circuit section
circuit
power source
switching power
cont4
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
JP7720079A
Other languages
Japanese (ja)
Other versions
JPS5923186B2 (en
Inventor
Kiyonobu Hayazaki
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.)
NEC Corp
Original Assignee
NEC 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP54077200A priority Critical patent/JPS5923186B2/en
Publication of JPS561770A publication Critical patent/JPS561770A/en
Publication of JPS5923186B2 publication Critical patent/JPS5923186B2/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
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
    • H02M7/5383—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a self-oscillating arrangement
    • H02M7/53832—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a self-oscillating arrangement in a push-pull arrangement
    • H02M7/53835—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a self-oscillating arrangement in a push-pull arrangement of the parallel type
    • 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
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0083—Converters characterised by their input or output configuration
    • H02M1/009—Converters characterised by their input or output configuration having two or more independently controlled outputs

Abstract

PURPOSE:To achieve highly reliable action preventing the generation of any beat noise by synchronizing the drive cycle with the chopper circuit section in the switching power circuit. CONSTITUTION:The input from the input terminals a and b activates the control circuit CONT4 and the transistors of the constant current drive circuit CST through the input terminal X and the invertion terminal X. Consequently, the switch SW of the chopper circuit section C works to allow the voltage to be applied to the converter circuit section D. The drive transformer T4 is forcibly inverted each time the constant current drive circuit CST is driven with the control circuit CONT4 and thus, the output signal from the change transformer T3 is reversed. Accordingly, as the chopper circuit section C synchronizes the switching cycle with the converter circuit section D, the beat noise peculiar to the multi-output power source can be removed.
JP54077200A 1979-06-19 1979-06-19 switching power supply circuit Expired JPS5923186B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54077200A JPS5923186B2 (en) 1979-06-19 1979-06-19 switching power supply circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54077200A JPS5923186B2 (en) 1979-06-19 1979-06-19 switching power supply circuit

Publications (2)

Publication Number Publication Date
JPS561770A true JPS561770A (en) 1981-01-09
JPS5923186B2 JPS5923186B2 (en) 1984-05-31

Family

ID=13627173

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54077200A Expired JPS5923186B2 (en) 1979-06-19 1979-06-19 switching power supply circuit

Country Status (1)

Country Link
JP (1) JPS5923186B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57125190U (en) * 1981-01-28 1982-08-04
JPS59127804A (en) * 1983-01-12 1984-07-23 松下電器産業株式会社 Device for correcting resistance value
US4686615A (en) * 1985-08-23 1987-08-11 Ferranti, Plc Power supply circuit

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57125190U (en) * 1981-01-28 1982-08-04
JPS59127804A (en) * 1983-01-12 1984-07-23 松下電器産業株式会社 Device for correcting resistance value
JPH0445961B2 (en) * 1983-01-12 1992-07-28 Matsushita Electric Ind Co Ltd
US4686615A (en) * 1985-08-23 1987-08-11 Ferranti, Plc Power supply circuit

Also Published As

Publication number Publication date
JPS5923186B2 (en) 1984-05-31

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