JPS5779532A - Power source device - Google Patents

Power source device

Info

Publication number
JPS5779532A
JPS5779532A JP15425480A JP15425480A JPS5779532A JP S5779532 A JPS5779532 A JP S5779532A JP 15425480 A JP15425480 A JP 15425480A JP 15425480 A JP15425480 A JP 15425480A JP S5779532 A JPS5779532 A JP S5779532A
Authority
JP
Japan
Prior art keywords
power source
transformer
turns
secondary side
converter
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
JP15425480A
Other languages
Japanese (ja)
Inventor
Genzo Otani
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP15425480A priority Critical patent/JPS5779532A/en
Publication of JPS5779532A publication Critical patent/JPS5779532A/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
    • 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)

Abstract

PURPOSE:To protect a smoothing capacitor inserted into a converter transformer at its secondary side, by forcing the output voltage of the converter trans-former to drop when an external DC power source is used. CONSTITUTION:When an AC power source is used, switches 2 and 30 are both closed and the oscillation period of an oscillating transistor (TR) is controlled by a feedback signal from a transformer 27 to obtain a DC output from the secondary side of a converter transformer 11. When a DC power source 29 is used, the switches 2 and 30 are opened to apply the outputs of rectifying-smoothing circuits 12 and 13 to a load 17, but a point A is held negative to a point B, thereby turning on a TR40. As a result, a TR35 turns off and any voltage is not induced at the secondary side of the transformer 27 any more. Then, a TR43 turns off and a TR44 turns on to decrease the amplification degree of a TR6, and consequently the output of the converter transformer 11 decreases, protecting the dielectric strength of a capacitor 13.
JP15425480A 1980-10-31 1980-10-31 Power source device Pending JPS5779532A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15425480A JPS5779532A (en) 1980-10-31 1980-10-31 Power source device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15425480A JPS5779532A (en) 1980-10-31 1980-10-31 Power source device

Publications (1)

Publication Number Publication Date
JPS5779532A true JPS5779532A (en) 1982-05-18

Family

ID=15580187

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15425480A Pending JPS5779532A (en) 1980-10-31 1980-10-31 Power source device

Country Status (1)

Country Link
JP (1) JPS5779532A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2770623A1 (en) * 2013-02-20 2014-08-27 Nxp B.V. Resonant converter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2770623A1 (en) * 2013-02-20 2014-08-27 Nxp B.V. Resonant converter
US9166484B2 (en) 2013-02-20 2015-10-20 Nxp B.V. Resonant converter

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