JPS5799716A - High frequency transformer for high frequency switching power source - Google Patents

High frequency transformer for high frequency switching power source

Info

Publication number
JPS5799716A
JPS5799716A JP55176183A JP17618380A JPS5799716A JP S5799716 A JPS5799716 A JP S5799716A JP 55176183 A JP55176183 A JP 55176183A JP 17618380 A JP17618380 A JP 17618380A JP S5799716 A JPS5799716 A JP S5799716A
Authority
JP
Japan
Prior art keywords
high frequency
power source
winding
frequency transformer
switching 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.)
Granted
Application number
JP55176183A
Other languages
Japanese (ja)
Other versions
JPS597204B2 (en
Inventor
Tetsuo Hayashi
Saburo Okumura
Hideo Ishii
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.)
Sansha Electric Manufacturing Co Ltd
Original Assignee
Sansha Electric Manufacturing 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 Sansha Electric Manufacturing Co Ltd filed Critical Sansha Electric Manufacturing Co Ltd
Priority to JP55176183A priority Critical patent/JPS597204B2/en
Publication of JPS5799716A publication Critical patent/JPS5799716A/en
Publication of JPS597204B2 publication Critical patent/JPS597204B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F30/00—Fixed transformers not covered by group H01F19/00
    • H01F30/06—Fixed transformers not covered by group H01F19/00 characterised by the structure
    • H01F30/10—Single-phase transformers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)
  • Coils Of Transformers For General Uses (AREA)

Abstract

PURPOSE:To reduce a capacitance of a capacitor for overvoltage suppression by a method wherein a primary winding of a high frequency transformer used in a power source is composed of two coils having the same number of turns in a bifilar winding manner, and further an air gap or an insulator is provided between the primary and the secondary winding, thereby a leakage inductance is generated. CONSTITUTION:A circuit is composed of an A.C. power source, a D.C. power source containing a rectifier and a capacitor, a high frequency transformer, a diode and a transistor and furthermore a high frequency switching power source containing a control device. In this constitution the high frequency transformer provided in the switching power source is constructed as follows: a first insulating material 4 is applied around a leg of an iron core 3, two primary windings 5 having a same number of turns are wound side by side in parallel arount it, and they are constructed as a bifilar winding which has a dense coupling. Next the second insulating materials 6 are arranged facing to each other at both sides around the circumference of the winding 5, all circumference including them is covered by the third insulating material 7 of a piped shape, while a secondary winding 8 is wound around them and coupling between it and the winding 5 is made loose.
JP55176183A 1980-12-12 1980-12-12 High frequency transformer for high frequency switching power supply Expired JPS597204B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55176183A JPS597204B2 (en) 1980-12-12 1980-12-12 High frequency transformer for high frequency switching power supply

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55176183A JPS597204B2 (en) 1980-12-12 1980-12-12 High frequency transformer for high frequency switching power supply

Publications (2)

Publication Number Publication Date
JPS5799716A true JPS5799716A (en) 1982-06-21
JPS597204B2 JPS597204B2 (en) 1984-02-17

Family

ID=16009096

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55176183A Expired JPS597204B2 (en) 1980-12-12 1980-12-12 High frequency transformer for high frequency switching power supply

Country Status (1)

Country Link
JP (1) JPS597204B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62114471A (en) * 1985-11-06 1987-05-26 ヴィエルティー・コーポレーション Zero current switching current feeding advance type converter
JPS62135277A (en) * 1985-12-04 1987-06-18 Densetsu:Kk High-voltage power supply unit
US9795906B2 (en) 2004-11-05 2017-10-24 Donaldson Company, Inc. Filter medium and breather filter structure
USRE47737E1 (en) 2004-11-05 2019-11-26 Donaldson Company, Inc. Filter medium and structure

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62114471A (en) * 1985-11-06 1987-05-26 ヴィエルティー・コーポレーション Zero current switching current feeding advance type converter
JPS62135277A (en) * 1985-12-04 1987-06-18 Densetsu:Kk High-voltage power supply unit
US9795906B2 (en) 2004-11-05 2017-10-24 Donaldson Company, Inc. Filter medium and breather filter structure
USRE47737E1 (en) 2004-11-05 2019-11-26 Donaldson Company, Inc. Filter medium and structure
US10610813B2 (en) 2004-11-05 2020-04-07 Donaldson Company, Inc. Filter medium and breather filter structure
USRE49097E1 (en) 2004-11-05 2022-06-07 Donaldson Company, Inc. Filter medium and structure
US11504663B2 (en) 2004-11-05 2022-11-22 Donaldson Company, Inc. Filter medium and breather filter structure

Also Published As

Publication number Publication date
JPS597204B2 (en) 1984-02-17

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