JPS5644380A - Transformer - Google Patents

Transformer

Info

Publication number
JPS5644380A
JPS5644380A JP11732879A JP11732879A JPS5644380A JP S5644380 A JPS5644380 A JP S5644380A JP 11732879 A JP11732879 A JP 11732879A JP 11732879 A JP11732879 A JP 11732879A JP S5644380 A JPS5644380 A JP S5644380A
Authority
JP
Japan
Prior art keywords
frequency
transformer
polarity
fed
output
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
JP11732879A
Other languages
Japanese (ja)
Inventor
Tetsuo Yoshida
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.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry 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 Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP11732879A priority Critical patent/JPS5644380A/en
Publication of JPS5644380A publication Critical patent/JPS5644380A/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
    • H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/21—Conversion of ac power input into dc 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
    • H02M7/217—Conversion of ac power input into dc 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Ac-Ac Conversion (AREA)

Abstract

PURPOSE:To obtain the compact AC-DC combined transformer with a high efficiency by initially switching the polarity at a frequency higher than that of the input voltage so as to effect the secondary conversion with the high frequency transformer and the returning it to the original position at such a higher frequency. CONSTITUTION:AC (or DC) voltage from input terminals 21 and 22 is fed to the first polarity switching means (for example, MOS-FET251-258) and is excited with an output of a square wave osillator 30 which outputs a frequency higher than that of the input voltage and after switched in the polarity, it is fed to a high frequency transformer 27 to effect the secondary conversion at the turn ratio of n2/n1. The output is fed to the second polarity switching means (for example, MOS- FET261-268), rectified synchronizing with the high frequency of an oscillator 30 and outputted to output terminals 23 and 24 after transformed. Such higher frequency by the switching technique can reduce the amount of iron and copper to be used for transformers thereby assuring a compact and light transformer with a high efficiency.
JP11732879A 1979-09-14 1979-09-14 Transformer Pending JPS5644380A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11732879A JPS5644380A (en) 1979-09-14 1979-09-14 Transformer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11732879A JPS5644380A (en) 1979-09-14 1979-09-14 Transformer

Publications (1)

Publication Number Publication Date
JPS5644380A true JPS5644380A (en) 1981-04-23

Family

ID=14709011

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11732879A Pending JPS5644380A (en) 1979-09-14 1979-09-14 Transformer

Country Status (1)

Country Link
JP (1) JPS5644380A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4706178A (en) * 1985-09-20 1987-11-10 Mitsubishi Denki Kabushiki Kaisha Power conversion system
JPH0671617U (en) * 1991-07-12 1994-10-07 清水建設株式会社 Reinforced masonry structure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4706178A (en) * 1985-09-20 1987-11-10 Mitsubishi Denki Kabushiki Kaisha Power conversion system
JPH0671617U (en) * 1991-07-12 1994-10-07 清水建設株式会社 Reinforced masonry structure

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