JPS5720170A - Power supply device - Google Patents

Power supply device

Info

Publication number
JPS5720170A
JPS5720170A JP9236480A JP9236480A JPS5720170A JP S5720170 A JPS5720170 A JP S5720170A JP 9236480 A JP9236480 A JP 9236480A JP 9236480 A JP9236480 A JP 9236480A JP S5720170 A JPS5720170 A JP S5720170A
Authority
JP
Japan
Prior art keywords
winding
circuit
power source
control
input power
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
JP9236480A
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 JP9236480A priority Critical patent/JPS5720170A/en
Publication of JPS5720170A publication Critical patent/JPS5720170A/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
    • H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
    • H02M7/02—Conversion of AC power input into DC power output without possibility of reversal
    • H02M7/04—Conversion of AC power input into DC power output without possibility of reversal by static converters

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Rectifiers (AREA)
  • Control Of Voltage And Current In General (AREA)

Abstract

PURPOSE:To enlarge the effective magnetic flux changing region without the need for providing a circuit for inverting polarity, by providing a control winding to a power transformer, and connecting said control winding to an AC input power source so that the magnetic field generated by the primary winding is cancelled. CONSTITUTION:In a transformer 5, prinmary and secondary windings 5a and 5b and a control winding 5c are disposed respectively, the primary winding 5a being connected to an AC input power source 6 through a TRIAC8, while the control winding 5c being connected through an impedance circuit 7 to the AC input power source 6 so as to be opposite in polarity to the primary winding 5a. In addition, the voltage induced in the secondary winding 5b is converted into a DC voltage in a rectifying-smoothing circuit 9 and drawn out through an output voltage-detecting circuit 10, which detects the level of the output voltage and adds the detected value to a phase-controlling circuit 11 to control the conducting angle of the TRIAC8. Thereby, the effective magnetic flux changing region can be enlarged without producing any electric power loss, and the power transformer can be made more compact and lightweight.
JP9236480A 1980-07-07 1980-07-07 Power supply device Pending JPS5720170A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9236480A JPS5720170A (en) 1980-07-07 1980-07-07 Power supply device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9236480A JPS5720170A (en) 1980-07-07 1980-07-07 Power supply device

Publications (1)

Publication Number Publication Date
JPS5720170A true JPS5720170A (en) 1982-02-02

Family

ID=14052351

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9236480A Pending JPS5720170A (en) 1980-07-07 1980-07-07 Power supply device

Country Status (1)

Country Link
JP (1) JPS5720170A (en)

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