JPS5786919A - Power source circuit - Google Patents

Power source circuit

Info

Publication number
JPS5786919A
JPS5786919A JP16278780A JP16278780A JPS5786919A JP S5786919 A JPS5786919 A JP S5786919A JP 16278780 A JP16278780 A JP 16278780A JP 16278780 A JP16278780 A JP 16278780A JP S5786919 A JPS5786919 A JP S5786919A
Authority
JP
Japan
Prior art keywords
circuit
control
primary
core
transformer
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
JP16278780A
Other languages
Japanese (ja)
Inventor
Takao Takehara
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.)
Nippon Gakki Co Ltd
Original Assignee
Nippon Gakki 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 Nippon Gakki Co Ltd filed Critical Nippon Gakki Co Ltd
Priority to JP16278780A priority Critical patent/JPS5786919A/en
Publication of JPS5786919A publication Critical patent/JPS5786919A/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
    • H02M3/33507—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

Landscapes

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

Abstract

PURPOSE:To widen an effective magnetic-flux variation range by enabling a unidirectional switching element to be used by applying a pulsating current to the primary side of a transformer through a switching circuit and applying a reverse bias amgnetic field to the core of the transformer prior to primary- side conduction. CONSTITUTION:The output of an AC power source 2 is converted by a rectifying circuit 3 into a pulsating current, which is applied to a primary winding 1a through a unidirectional switching circuit 4. The output voltage of a secondary- side smoothing circuit 5 is detected by a detecting circuit 7 to control the on- period of the circuit 4 through a primary-side conduction-phase-angle control circuit 6. Then, a current is supplied from a control-current supply circuit 8 to a control winding 1c right before the circuit 4 turns on and a reverse bias magnetic field is applied to the core 1h of a power transformer to widen the effective magnetic-flux variation range of a core 1h. Consequently, a unidirectional element whose on-off control is easy is made usable as the circuit 4 and a large output is led out of the power transformer.
JP16278780A 1980-11-19 1980-11-19 Power source circuit Pending JPS5786919A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16278780A JPS5786919A (en) 1980-11-19 1980-11-19 Power source circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16278780A JPS5786919A (en) 1980-11-19 1980-11-19 Power source circuit

Publications (1)

Publication Number Publication Date
JPS5786919A true JPS5786919A (en) 1982-05-31

Family

ID=15761192

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16278780A Pending JPS5786919A (en) 1980-11-19 1980-11-19 Power source circuit

Country Status (1)

Country Link
JP (1) JPS5786919A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03207268A (en) * 1989-12-29 1991-09-10 Isao Takahashi Switching regulator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03207268A (en) * 1989-12-29 1991-09-10 Isao Takahashi Switching regulator

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