TW200705476A - Current balancing transformer - Google Patents

Current balancing transformer

Info

Publication number
TW200705476A
TW200705476A TW095116746A TW95116746A TW200705476A TW 200705476 A TW200705476 A TW 200705476A TW 095116746 A TW095116746 A TW 095116746A TW 95116746 A TW95116746 A TW 95116746A TW 200705476 A TW200705476 A TW 200705476A
Authority
TW
Taiwan
Prior art keywords
winding
bobbin
frames
wound
magnetic core
Prior art date
Application number
TW095116746A
Other languages
Chinese (zh)
Other versions
TWI416555B (en
Inventor
Yutaka Ikeda
Hideyuki Akiyama
Jun Hironaka
Original Assignee
Fdk Corp
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
Priority claimed from JP2005139760A external-priority patent/JP4693037B2/en
Priority claimed from JP2006042926A external-priority patent/JP4693052B2/en
Application filed by Fdk Corp filed Critical Fdk Corp
Publication of TW200705476A publication Critical patent/TW200705476A/en
Application granted granted Critical
Publication of TWI416555B publication Critical patent/TWI416555B/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/08—High-leakage transformers or inductances
    • H01F38/10—Ballasts, e.g. for discharge lamps
    • 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
    • H01F30/04—Fixed transformers not covered by group H01F19/00 having two or more secondary windings, each supplying a separate load, e.g. for radio set power supplies
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/26—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
    • H05B41/28—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters
    • H05B41/282—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices
    • H05B41/2821—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices by means of a single-switch converter or a parallel push-pull converter in the final stage
    • H05B41/2822—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices by means of a single-switch converter or a parallel push-pull converter in the final stage using specially adapted components in the load circuit, e.g. feed-back transformers, piezoelectric transformers; using specially adapted load circuit configurations
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/24—Magnetic cores
    • H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
    • H01F27/263—Fastening parts of the core together
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
    • H01F27/306—Fastening or mounting coils or windings on core, casing or other support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
    • H01F27/326—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures specifically adapted for discharge lamp ballasts

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)
  • Transformers For Measuring Instruments (AREA)

Abstract

There is provided a single-structure transformer part capable of balancing current flowing to three or four loads while reducing the number of parts, the mounting area, and the cost. The transformer uses a bobbin having a plurality of winding frames on the same winding axis and using coils wound on the respective winding frames of the bobbin in combination with the magnetic core. The bobbin (20) has three winding regions divided by two grooves for arranging the magnetic core at the intermediate portions. Each of the winding regions has two winding frames. A current dividing coil of the first stage is wound on the both winding frames of the central winding region and a current dividing coil of the second stage is wound in each of the winding regions located at both sides. The magnetic core (24) is arranged so that coils of the respective winding regions form a closed magnetic path.
TW95116746A 2005-05-12 2006-05-11 Current balance transformer TWI416555B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2005139760A JP4693037B2 (en) 2005-05-12 2005-05-12 Current balance transformer
JP2006042926A JP4693052B2 (en) 2006-02-20 2006-02-20 Current balance transformer

Publications (2)

Publication Number Publication Date
TW200705476A true TW200705476A (en) 2007-02-01
TWI416555B TWI416555B (en) 2013-11-21

Family

ID=37396466

Family Applications (1)

Application Number Title Priority Date Filing Date
TW95116746A TWI416555B (en) 2005-05-12 2006-05-11 Current balance transformer

Country Status (2)

Country Link
TW (1) TWI416555B (en)
WO (1) WO2006120957A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI414204B (en) * 2007-09-28 2013-11-01 Epistar Corp Light source device, light-emitting component package and power supplier

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4497415B2 (en) * 2005-05-25 2010-07-07 Ｆｄｋ株式会社 Current balance transformer
JP2011124337A (en) * 2009-12-09 2011-06-23 Fdk Corp Transformer

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5940513A (en) * 1982-08-28 1984-03-06 Tdk Corp Leakage transformer
JPH067214U (en) * 1992-06-26 1994-01-28 東光株式会社 Bobbin for multiple inductors
JPH10149932A (en) * 1996-11-19 1998-06-02 Hitachi Ferrite Electronics Ltd High voltage transformer
JP2004335443A (en) * 2003-02-10 2004-11-25 Masakazu Ushijima Inverter circuit for discharge tube for multiple lamp lighting, and surface light source system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI414204B (en) * 2007-09-28 2013-11-01 Epistar Corp Light source device, light-emitting component package and power supplier

Also Published As

Publication number Publication date
TWI416555B (en) 2013-11-21
WO2006120957A1 (en) 2006-11-16

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees