WO2001048768A1 - Power conversion systems utilizing wire core inductive devices - Google Patents

Power conversion systems utilizing wire core inductive devices Download PDF

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Publication number
WO2001048768A1
WO2001048768A1 PCT/US2000/035285 US0035285W WO0148768A1 WO 2001048768 A1 WO2001048768 A1 WO 2001048768A1 US 0035285 W US0035285 W US 0035285W WO 0148768 A1 WO0148768 A1 WO 0148768A1
Authority
WO
WIPO (PCT)
Prior art keywords
power conversion
conversion system
magnetic core
wires
housing
Prior art date
Application number
PCT/US2000/035285
Other languages
French (fr)
Inventor
Harrie R. Buswell
Original Assignee
Buswell Harrie R
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 Buswell Harrie R filed Critical Buswell Harrie R
Priority to CA2394986A priority Critical patent/CA2394986C/en
Priority to AT00988355T priority patent/ATE429022T1/en
Priority to AU24569/01A priority patent/AU2456901A/en
Priority to JP2001548401A priority patent/JP2003518764A/en
Priority to DE60042034T priority patent/DE60042034D1/en
Priority to EP00988355A priority patent/EP1256120B1/en
Priority to KR1020027008514A priority patent/KR100701906B1/en
Publication of WO2001048768A1 publication Critical patent/WO2001048768A1/en

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
    • H01F30/16—Toroidal transformers
    • 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
    • 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
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/36—Electric or magnetic shields or screens
    • H01F27/366—Electric or magnetic shields or screens made of ferromagnetic material
    • 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
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/36—Electric or magnetic shields or screens
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F3/00—Cores, Yokes, or armatures
    • H01F3/06—Cores, Yokes, or armatures made from wires

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inverter Devices (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Power Conversion In General (AREA)
  • Dc-Dc Converters (AREA)
  • Near-Field Transmission Systems (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Amplifiers (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

A power conversion system utilizes an inductive device having a magnetic core formed of a plurality of wires that extend through the inductive device, and beyond its electric windings. The ends of the wires are formed around the electric windings, meet, and are connected together enveloping the magnetic core and windings forming a complete magnetic circuit. The inductive device may be a transformer used in a power supply, inverter, or other device with two or more windings, a choke coil with only one winding used in a ballast, power supply, inverter, or other inductive device. The power conversion system may further include a rectifier, a filter, and a regulator a so called analog system or components as in a switch mode system. In one embodiment of the power conversion system one or all of the rectification, filtering or regulation components or other components may be positioned within a housing formed by the magnetic core to provide physical protection and protection from the intrusion of electromagnetic interference from external sources.

Claims

17Claims
1. A power conversion system comprising: input terminals connected to an external alternating current power source; a conversion means having a magnetic core formed of a plurality of wires each having first and second ends, said conversion means electrically connected to said input terminals; and at least one output terminal electrically connected to said conversion means and for receiving at least one external load.
2. The power conversion system of Claim 1, wherein said conversion means includes a transformer having at least two electric windings surrounding said magnetic core and at least one rectifier; and wherein said first and second ends of said plurality of wires extend around said at least two electric windings and connect together enveloping said magnetic core and said at least two electric windings and forming a complete magnetic circuit.
3. The power conversion system of Claim 2, further comprising at least one filter for smoothing an output of said at least one rectifier.
4. The power conversion system of Claim 3, further comprising at least one regulator for substantially maintaining an output of said at least one filter at a predetermined voltage level independent of said at least one external load or variations in said alternating current source. 18
5. The power conversion system of Claim 4, wherein said magnetic core forms a housing; and at least one of said at least one rectifier, filter, or regulator is positioned within said housing.
6. The power conversion system of Claim 2, wherein said magnetic core forms a housing; and at least one of said at least one rectifiers is positioned within said housing.
7. The power conversion system of Claim 6, wherein said housing is open to an ambient environment at first and second ends; and first and second plates cover said ends, whereby magnetic flux emanating from said transformer is substantially contained therein and the intrusion of electromagnetic interference and magnetic flux from external sources is significantly reduced.
8. The power conversion system of Claim 7, further comprising a wire transversely wrapped around at least said first and second ends of said plurality of wires to provide further containment of magnet flux emanating from the system and reduction of the intrusion of electromagnetic interference and magnetic flux from external sources.
9. The power conversion system of Claim 2, wherein said conversion means further includes a switching means for controlling the phase and frequency of an output, said frequency ranging from extremely 19 low frequency up to low frequency radio frequencies.
10. A power conversion system comprising: input terminals connected to an external alternating current power source; a transformer having a magnetic core formed of a plurality of wires each having first and second ends and two electric windings surrounding said magnetic core, said transformer electrically connected to said input terminals; a rectifier connected to said transformer; and output terminals electrically connected to said rectifier for receiving at least one external load.
11. The power conversion system of Claim 10, wherein said first and second ends of said plurality of wires extend around said electric windings and connect together enveloping and shielding said magnetic core and said electric windings and forming a complete magnetic circuit, whereby magnetic flux emanating from said transformer is substantially contained therein and the intrusion of electromagnetic interference and radio frequency interference from external sources is significantly reduced.
12. The power conversion system of Claim 11 , further comprising a filter for smoothing an output of said rectifier.
13. The power conversion system of Claim 12, further 20 comprising a regulator for substantially maintaining an output of said filter at a level independent of said external load or variations in said alternating current source.
14. The power conversion system of Claim 13, wherein said magnetic core forms a housing; and at least one of said rectifier, filter, or regulator is housed within said housing.
15. The power conversion system of Claim 10, wherein said magnetic core forms a housing; and said rectifier is positioned within said housing.
16. The power conversion system of Claim 15, wherein said housing is open to an ambient environment at first and second ends; and first and second plates cover said ends to provide further containment of magnet flux emanating from the system and reduction of the intrusion of electromagnetic interference and radio frequency interference from external sources.
17. The power conversion system of Claim 16, further comprising a wire transversely wrapped around at least said first and second ends of said plurality of wires.
18. A method for making a power conversion system comprising the steps of: 21 forming a magnetic core of a plurality of wires; placing at least one electric winding along the length of said magnetic core; connecting said at least one electric winding to an external alternating power source and at least one passive or active element; connecting said at least one passive or active element to at least one external load; forming said plurality of wires over said at least one electric winding to envelop said winding and form a complete magnetic circuit.
19. The method for making a power conversion system according to Claim 18, wherein the step of forming a magnetic core of a plurality of wires includes: gathering a first group of wires; and binding said first group of wires into a bundle of substantially parallel wires such that said bundle forms a housing.
20. The method for making a power conversion system according to Claim 19 further comprising the step of placing said at least one passive element within said housing; and wherein the step of placing said at least one electric winding along the length of said magnetic core includes winding said at least one electric winding directly on said magnetic core.
PCT/US2000/035285 1999-12-28 2000-12-27 Power conversion systems utilizing wire core inductive devices WO2001048768A1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
CA2394986A CA2394986C (en) 1999-12-28 2000-12-27 Power conversion systems utilizing wire core inductive devices
AT00988355T ATE429022T1 (en) 1999-12-28 2000-12-27 POWER CONVERSION SYSTEMS USING WIRE CORE INDUCTIVE ARRANGEMENTS
AU24569/01A AU2456901A (en) 1999-12-28 2000-12-27 Power conversion systems utilizing wire core inductive devices
JP2001548401A JP2003518764A (en) 1999-12-28 2000-12-27 Power conversion system using wire core induction device
DE60042034T DE60042034D1 (en) 1999-12-28 2000-12-27 POWER CONVERSION SYSTEMS USING INDUCTIVE ARRANGEMENTS WITH WIRE CORE
EP00988355A EP1256120B1 (en) 1999-12-28 2000-12-27 Power conversion systems utilizing wire core inductive devices
KR1020027008514A KR100701906B1 (en) 1999-12-28 2000-12-27 Power conversion systems utilizing wire core inductive devices

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US47318799A 1999-12-28 1999-12-28
US09/473,187 1999-12-28

Publications (1)

Publication Number Publication Date
WO2001048768A1 true WO2001048768A1 (en) 2001-07-05

Family

ID=23878550

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/035285 WO2001048768A1 (en) 1999-12-28 2000-12-27 Power conversion systems utilizing wire core inductive devices

Country Status (9)

Country Link
EP (1) EP1256120B1 (en)
JP (1) JP2003518764A (en)
KR (1) KR100701906B1 (en)
CN (1) CN100449660C (en)
AT (1) ATE429022T1 (en)
AU (1) AU2456901A (en)
CA (1) CA2394986C (en)
DE (1) DE60042034D1 (en)
WO (1) WO2001048768A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1360708A4 (en) * 2001-01-23 2009-02-11 Harrie R Buswell Toroidal inductive devices and methods of making the same
EP1686597B1 (en) * 2005-01-04 2016-10-05 ASM Assembly Systems GmbH & Co. KG Device for inductive energy transfer between a component placement unit and a component feeding unit for components; component placement unit and component feeding unit
WO2012093419A1 (en) * 2011-01-06 2012-07-12 三菱電機株式会社 Core, coil and transformer
KR101329501B1 (en) * 2012-05-04 2013-11-14 주식회사 포스코 ransformer of wound core and method for manufacturing thereof
JP6510371B2 (en) * 2015-09-04 2019-05-08 アルパイン株式会社 Inductor and method of manufacturing the same

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US619760A (en) * 1899-02-21 Electrical apparatus
DE352251C (en) * 1914-07-15 1922-04-22 Heinrich Weiland Process for the production of small transformers for low voltage with winding enclosed on all sides by iron wires
FR1068298A (en) * 1952-12-12 1954-06-23 Interlux Improvements made to means of adjusting the electric current, in particular in cycle lighting circuits
US2962679A (en) * 1955-07-25 1960-11-29 Gen Electric Coaxial core inductive structures
US3304599A (en) * 1965-03-30 1967-02-21 Teletype Corp Method of manufacturing an electromagnet having a u-shaped core

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4035751A (en) * 1975-05-27 1977-07-12 Ainslie Walthew Device for inducing an electrical voltage
JPS5880807A (en) * 1981-11-10 1983-05-16 Nippon Ferrite Ltd Small inductance element
US4491903A (en) * 1982-11-19 1985-01-01 Montague Herbert R Combination low-pass filter and high frequency transient suppressor
JPS61176991U (en) * 1985-04-23 1986-11-05
JPH04363007A (en) * 1991-01-24 1992-12-15 Nikko Kogyo Kk Signal discriminator
JPH07226324A (en) * 1994-02-14 1995-08-22 Kandenko Co Ltd Transformer
US5692290A (en) * 1994-09-19 1997-12-02 Taiyo Yuden Kabushiki Kaisha Method of manufacturing a chip inductor
US6268786B1 (en) * 1998-11-30 2001-07-31 Harrie R. Buswell Shielded wire core inductive devices

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US619760A (en) * 1899-02-21 Electrical apparatus
DE352251C (en) * 1914-07-15 1922-04-22 Heinrich Weiland Process for the production of small transformers for low voltage with winding enclosed on all sides by iron wires
FR1068298A (en) * 1952-12-12 1954-06-23 Interlux Improvements made to means of adjusting the electric current, in particular in cycle lighting circuits
US2962679A (en) * 1955-07-25 1960-11-29 Gen Electric Coaxial core inductive structures
US3304599A (en) * 1965-03-30 1967-02-21 Teletype Corp Method of manufacturing an electromagnet having a u-shaped core

Also Published As

Publication number Publication date
KR100701906B1 (en) 2007-04-02
DE60042034D1 (en) 2009-05-28
KR20030007392A (en) 2003-01-23
AU2456901A (en) 2001-07-09
ATE429022T1 (en) 2009-05-15
CN1415111A (en) 2003-04-30
CA2394986C (en) 2010-10-12
CN100449660C (en) 2009-01-07
EP1256120B1 (en) 2009-04-15
CA2394986A1 (en) 2001-07-05
EP1256120A1 (en) 2002-11-13
JP2003518764A (en) 2003-06-10

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