US1553983A - Electrical coil - Google Patents
Electrical coil Download PDFInfo
- Publication number
- US1553983A US1553983A US347391A US34739119A US1553983A US 1553983 A US1553983 A US 1553983A US 347391 A US347391 A US 347391A US 34739119 A US34739119 A US 34739119A US 1553983 A US1553983 A US 1553983A
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- US
- United States
- Prior art keywords
- legs
- transformer
- leg
- wound
- coil
- 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.)
- Expired - Lifetime
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Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F41/00—Rinsing apparatus
-
- 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
Definitions
- This invention relates generally to elec- 0 trical coils and more particularly to transformer and retardation coils.
- the object of the invention is to provide a compact and convenient form for combining a mutually noninterfering retardation coil and transformer in the-same physical structure.
- a magnetic core having the form of an enclosed H.
- Primary and secondary transformer windings are placed on the outer legs of the core and these windings are balanced so that the magnetic effect in each leg is equal.
- the middle leg of the 5 core connects points of equal magnetic potential and is unaffected by the flux variations in the. other two legs. A retardation coil placed on this intermediate leg is therefore unaffected by the transformer ourrents.
- the invention may be more completely understood by reference to the drawing which illustrates the invention in its preferred embodiment.
- the core structure is shown in side elevation and the coil windings to be placed thereon, are shown diagrammatically.
- a T-shaped section 1 and a U-shaped section 2 are fitted together at the faces 3, 1 and 5, to form a closed magnetic structure having the legs 6, 7 and 8.
- a retardation coil 9 of any desired number of turns.
- Coils 10 and 12 are wound on the legs 7 and 8 respectively, and are connected together to form the transformer primary winding. Coils 10 and 12 are composed of the same number of turns and are otherwise similar in order to produce equal inductive eifects.
- Coils 11 and 13 are Wound on the legs 7 and 8 respectively and are connected together to form the transformer secondary winding. They are composed of the same number of turns and are otherwise similar in order that equal inductive effects may be produced'in them.
- the transformer primary and secondary, and the retardation coil are adapted to be connected in separate electrical circuits.
- the primary winding 10, 12 and the secondary winding 11, 13 may be employed for coupling a vacuum tube repeater to an outgoing line, the primary winding being connected in circuit wit-h the output electrodes ofthe tube, while the secondary winding is connected in circuit with the outgoing line.
- the retard coil 9 could be employed, for example, to prevent the alternating currents in the output circuit of such a .repeater from passing through the battery employed as the output circuit source of voltage. This may be safely done because there is no inductive coupling between winding 9 and the primary and secondary windings 10, 12 and 11, 13.
- the construction shown ure therefore enables the same magnetic structure to be employed both for the retard coil as well as the transformer without objectionable inductive effects therebetween.
- WVhen operating simultaneously the decrease in flux in either leg 7 or 8, due to the flux of leg 6, is ofiset by a corresponding increase in flux in the other leg so that the total 'efiect due to leg 6 on the other two legs is zero.
- a combined structure for a transformer and a retardation coil consisting of a three legged closed magnetic core, transformer windings wound on two only of said legs and a retardation coil Winding wound on the other of said legs.
- a combinedastructure for a mutually noninterfering transformer and retardation coil consisting of a closed magnetic core having two non-adjacent legs and an intermediate leg; a primary transformer winding Wound on the said nonadjacent legs; a secondary winding simi larly wound on the said non-adjacent'legs;
- a combined structure for a mutually non-inductive transformer and retardation coil consisting of a closed magnetic. core having two non-adjacent legs and an intermediate leg; equal primary transformer windings wound on said nonequal secondary windings wound on said non-adjacentlegs; and a retardation coil winding wound on said intermediate 1e".
- a combined structure for a mutually non-inductive transformer and a retardation coil consisting of a magnet core composed of an enclosed H section; equal primary windings wound on. the outer legs of sai core; equal secondary windings also wound on the outer legs of said core; and a retardation coil Wound on the middle leg of the said core.
- An inductance device comprising a substantially closed two-mesh magnetic structure having a common portion and a portion individual to each mesh, primary and secondary transformer windings WOUllCl on said structure, a retard winding on said structure, said windings being arranged on said structure such that magnetic flux in said structure produced by current 111 sald vretard winding does not produce a current in said primary and secondary windings.
Description
Sept. 15, 1925. 1,553,983
.w. L. CASPER ELECTRICAL COIL F'iie'd Dec. 26. 1919 lfiV/W'OK' M///amL.Ca pen Arty Patented Sept. 15, 1925.
UNITED STATES 1,553,983 PATENT OFFICE.
WILLIAM L. CASPER, OF BROOKLYN, NEW YORK, ASSIGNOR T WESTERN ELECTRIC COMPANY, INCORPORATED, OF NEW YORK, N. Y., A. CORPORATION OF NEW YORK.
ELECTRICAL COIL.
Application filed December 26, 1919. Serial No. 347,391. i
To all whom it may concern:
Be it known that I, WILLIAM L. CASPER, a citizen of theUnited States, residing at Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Electrical Coils, of which the following is a full, clear, concise, and exact description.
This invention relates generally to elec- 0 trical coils and more particularly to transformer and retardation coils.
The object of the invention is to provide a compact and convenient form for combining a mutually noninterfering retardation coil and transformer in the-same physical structure. a
This is accomplished in accordance with the invention in its preferred form by the use of a magnetic core having the form of an enclosed H. Primary and secondary transformer windings are placed on the outer legs of the core and these windings are balanced so that the magnetic effect in each leg is equal. The middle leg of the 5 core connects points of equal magnetic potential and is unaffected by the flux variations in the. other two legs. A retardation coil placed on this intermediate leg is therefore unaffected by the transformer ourrents.
The invention may be more completely understood by reference to the drawing which illustrates the invention in its preferred embodiment. The core structure is shown in side elevation and the coil windings to be placed thereon, are shown diagrammatically.
Referring to the drawing which illus trates the invention in its preferred form, a T-shaped section 1, and a U-shaped section 2, are fitted together at the faces 3, 1 and 5, to form a closed magnetic structure having the legs 6, 7 and 8.
On the leg 6 of the section 1, is wound a retardation coil 9 of any desired number of turns.
Two coils 10 and, 12 are wound on the legs 7 and 8 respectively, and are connected together to form the transformer primary winding. Coils 10 and 12 are composed of the same number of turns and are otherwise similar in order to produce equal inductive eifects.
Coils 11 and 13 are Wound on the legs 7 and 8 respectively and are connected together to form the transformer secondary winding. They are composed of the same number of turns and are otherwise similar in order that equal inductive effects may be produced'in them.
The transformer primary and secondary, and the retardation coil are adapted to be connected in separate electrical circuits. For example, the primary winding 10, 12 and the secondary winding 11, 13 may be employed for coupling a vacuum tube repeater to an outgoing line, the primary winding being connected in circuit wit-h the output electrodes ofthe tube, while the secondary winding is connected in circuit with the outgoing line. The retard coil 9 could be employed, for example, to prevent the alternating currents in the output circuit of such a .repeater from passing through the battery employed as the output circuit source of voltage. This may be safely done because there is no inductive coupling between winding 9 and the primary and secondary windings 10, 12 and 11, 13. The construction shown ure therefore enables the same magnetic structure to be employed both for the retard coil as well as the transformer without objectionable inductive effects therebetween.
Flux in leg 6, due to current in coil 9, divides and takes paths in opposite directions through the legs 7 and 8, and the inductive effects in coils 10 and 11 are neutralized by the inductive effects in coils 12 and 13 respectively.
Flux in legs 7 and 8 produced by current in elther coils 10 and 12 or coils 11 and 13, does not pass through leg 6 since leg 6 connects points of equal magnetic potential. Thierefore no inductive eifect is produced in coi 9.
WVhen operating simultaneously the decrease in flux in either leg 7 or 8, due to the flux of leg 6, is ofiset by a corresponding increase in flux in the other leg so that the total 'efiect due to leg 6 on the other two legs is zero.
What is claimed is:
1. A combined structure for a transformer and a retardation coil consisting of a three legged closed magnetic core, transformer windings wound on two only of said legs and a retardation coil Winding wound on the other of said legs.
in the fig-.
- adjacent legs;
2. A combinedastructure for a mutually noninterfering transformer and retardation coil, said structure consisting of a closed magnetic core having two non-adjacent legs and an intermediate leg; a primary transformer winding Wound on the said nonadjacent legs; a secondary winding simi larly wound on the said non-adjacent'legs;
and a retardation coil winding wound on said intermediate leg.
3. A combined structure for a mutually non-inductive transformer and retardation coil, said structure consisting of a closed magnetic. core having two non-adjacent legs and an intermediate leg; equal primary transformer windings wound on said nonequal secondary windings wound on said non-adjacentlegs; and a retardation coil winding wound on said intermediate 1e". v
4. A combined structure for a mutually non-inductive transformer and a retardation coil, said structure consisting of a magnet core composed of an enclosed H section; equal primary windings wound on. the outer legs of sai core; equal secondary windings also wound on the outer legs of said core; and a retardation coil Wound on the middle leg of the said core.
5. An inductance device comprising a substantially closed two-mesh magnetic structure having a common portion and a portion individual to each mesh, primary and secondary transformer windings WOUllCl on said structure, a retard winding on said structure, said windings being arranged on said structure such that magnetic flux in said structure produced by current 111 sald vretard winding does not produce a current in said primary and secondary windings.
In witness whereof, I hereunto subscribe my name this 22nd day-of Deceniber A.- D.,
WILLIAM L. CASPER.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US347391A US1553983A (en) | 1919-12-26 | 1919-12-26 | Electrical coil |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US347391A US1553983A (en) | 1919-12-26 | 1919-12-26 | Electrical coil |
Publications (1)
Publication Number | Publication Date |
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US1553983A true US1553983A (en) | 1925-09-15 |
Family
ID=23363511
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US347391A Expired - Lifetime US1553983A (en) | 1919-12-26 | 1919-12-26 | Electrical coil |
Country Status (1)
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US (1) | US1553983A (en) |
Cited By (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3019348A (en) * | 1955-03-17 | 1962-01-30 | Remington Rand Inc | Transverse magnetic amplifier core construction |
US4156222A (en) * | 1971-05-05 | 1979-05-22 | Commerzstahl Handelsgesellschaft Mbh | Transformer with divided primary |
US5319343A (en) * | 1990-08-21 | 1994-06-07 | Powercube Corporation | Integrated magnetic inductor having series and common mode windings |
WO2002050851A1 (en) * | 2000-12-18 | 2002-06-27 | Ascom Energy Systems Ag | Transformer providing low output voltage |
US6617814B1 (en) | 2001-04-11 | 2003-09-09 | Rockwell Automation Technologies, Inc. | Integrated DC link choke and method for suppressing common-mode voltage in a motor drive |
US7132812B1 (en) | 2001-04-11 | 2006-11-07 | Rockwell Automation Technologies, Inc. | Integrated DC link choke and method for suppressing common-mode voltage in a motor drive |
DE102011001147A1 (en) * | 2011-03-08 | 2012-09-13 | Sma Solar Technology Ag | Premagnetized AC choke with pole turner |
US9295145B1 (en) | 2014-11-12 | 2016-03-22 | Universal Lighting Technologies, Inc. | Multifunction magnetic device with multiple cores and coils |
US9337251B2 (en) | 2013-01-22 | 2016-05-10 | Ferric, Inc. | Integrated magnetic core inductors with interleaved windings |
US9357651B2 (en) | 2012-09-11 | 2016-05-31 | Ferric Inc. | Magnetic core inductor integrated with multilevel wiring network |
US9647053B2 (en) | 2013-12-16 | 2017-05-09 | Ferric Inc. | Systems and methods for integrated multi-layer magnetic films |
US9991040B2 (en) | 2014-06-23 | 2018-06-05 | Ferric, Inc. | Apparatus and methods for magnetic core inductors with biased permeability |
US10002828B2 (en) | 2016-02-25 | 2018-06-19 | Ferric, Inc. | Methods for microelectronics fabrication and packaging using a magnetic polymer |
US20190027303A1 (en) * | 2017-07-19 | 2019-01-24 | Futurewei Technologies, Inc. | Inductor structure and method for forming the same |
US10244633B2 (en) | 2012-09-11 | 2019-03-26 | Ferric Inc. | Integrated switched inductor power converter |
US10622137B2 (en) * | 2016-07-19 | 2020-04-14 | Fanuc Corporation | Three-phase AC reactor having external connection position change unit and manufacturing method thereof |
US10629357B2 (en) | 2014-06-23 | 2020-04-21 | Ferric Inc. | Apparatus and methods for magnetic core inductors with biased permeability |
US10893609B2 (en) | 2012-09-11 | 2021-01-12 | Ferric Inc. | Integrated circuit with laminated magnetic core inductor including a ferromagnetic alloy |
US11058001B2 (en) | 2012-09-11 | 2021-07-06 | Ferric Inc. | Integrated circuit with laminated magnetic core inductor and magnetic flux closure layer |
US11064610B2 (en) | 2012-09-11 | 2021-07-13 | Ferric Inc. | Laminated magnetic core inductor with insulating and interface layers |
US11116081B2 (en) | 2012-09-11 | 2021-09-07 | Ferric Inc. | Laminated magnetic core inductor with magnetic flux closure path parallel to easy axes of magnetization of magnetic layers |
US11197374B2 (en) | 2012-09-11 | 2021-12-07 | Ferric Inc. | Integrated switched inductor power converter having first and second powertrain phases |
US11302469B2 (en) | 2014-06-23 | 2022-04-12 | Ferric Inc. | Method for fabricating inductors with deposition-induced magnetically-anisotropic cores |
-
1919
- 1919-12-26 US US347391A patent/US1553983A/en not_active Expired - Lifetime
Cited By (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3019348A (en) * | 1955-03-17 | 1962-01-30 | Remington Rand Inc | Transverse magnetic amplifier core construction |
US4156222A (en) * | 1971-05-05 | 1979-05-22 | Commerzstahl Handelsgesellschaft Mbh | Transformer with divided primary |
US5319343A (en) * | 1990-08-21 | 1994-06-07 | Powercube Corporation | Integrated magnetic inductor having series and common mode windings |
WO2002050851A1 (en) * | 2000-12-18 | 2002-06-27 | Ascom Energy Systems Ag | Transformer providing low output voltage |
US6617814B1 (en) | 2001-04-11 | 2003-09-09 | Rockwell Automation Technologies, Inc. | Integrated DC link choke and method for suppressing common-mode voltage in a motor drive |
US7132812B1 (en) | 2001-04-11 | 2006-11-07 | Rockwell Automation Technologies, Inc. | Integrated DC link choke and method for suppressing common-mode voltage in a motor drive |
DE102011001147A1 (en) * | 2011-03-08 | 2012-09-13 | Sma Solar Technology Ag | Premagnetized AC choke with pole turner |
US9293247B2 (en) | 2011-03-08 | 2016-03-22 | Sma Solar Technology Ag | Magnetically biased AC inductor with commutator |
US10244633B2 (en) | 2012-09-11 | 2019-03-26 | Ferric Inc. | Integrated switched inductor power converter |
US11197374B2 (en) | 2012-09-11 | 2021-12-07 | Ferric Inc. | Integrated switched inductor power converter having first and second powertrain phases |
US9357651B2 (en) | 2012-09-11 | 2016-05-31 | Ferric Inc. | Magnetic core inductor integrated with multilevel wiring network |
US9357650B2 (en) | 2012-09-11 | 2016-05-31 | Ferric Inc. | Method of making magnetic core inductor integrated with multilevel wiring network |
US10893609B2 (en) | 2012-09-11 | 2021-01-12 | Ferric Inc. | Integrated circuit with laminated magnetic core inductor including a ferromagnetic alloy |
US9844141B2 (en) | 2012-09-11 | 2017-12-12 | Ferric, Inc. | Magnetic core inductor integrated with multilevel wiring network |
US11064610B2 (en) | 2012-09-11 | 2021-07-13 | Ferric Inc. | Laminated magnetic core inductor with insulating and interface layers |
US11903130B2 (en) | 2012-09-11 | 2024-02-13 | Ferric Inc. | Method of manufacturing laminated magnetic core inductor with insulating and interface layers |
US11116081B2 (en) | 2012-09-11 | 2021-09-07 | Ferric Inc. | Laminated magnetic core inductor with magnetic flux closure path parallel to easy axes of magnetization of magnetic layers |
US11058001B2 (en) | 2012-09-11 | 2021-07-06 | Ferric Inc. | Integrated circuit with laminated magnetic core inductor and magnetic flux closure layer |
US9337251B2 (en) | 2013-01-22 | 2016-05-10 | Ferric, Inc. | Integrated magnetic core inductors with interleaved windings |
US9679958B2 (en) | 2013-12-16 | 2017-06-13 | Ferric Inc. | Methods for manufacturing integrated multi-layer magnetic films |
US9647053B2 (en) | 2013-12-16 | 2017-05-09 | Ferric Inc. | Systems and methods for integrated multi-layer magnetic films |
US10431371B2 (en) | 2014-06-23 | 2019-10-01 | Ferric Inc. | Manufacturing methods for magnetic core inductors with biased permeability |
US11302469B2 (en) | 2014-06-23 | 2022-04-12 | Ferric Inc. | Method for fabricating inductors with deposition-induced magnetically-anisotropic cores |
US10629357B2 (en) | 2014-06-23 | 2020-04-21 | Ferric Inc. | Apparatus and methods for magnetic core inductors with biased permeability |
US9991040B2 (en) | 2014-06-23 | 2018-06-05 | Ferric, Inc. | Apparatus and methods for magnetic core inductors with biased permeability |
US9295145B1 (en) | 2014-11-12 | 2016-03-22 | Universal Lighting Technologies, Inc. | Multifunction magnetic device with multiple cores and coils |
US10354950B2 (en) | 2016-02-25 | 2019-07-16 | Ferric Inc. | Systems and methods for microelectronics fabrication and packaging using a magnetic polymer |
US10002828B2 (en) | 2016-02-25 | 2018-06-19 | Ferric, Inc. | Methods for microelectronics fabrication and packaging using a magnetic polymer |
US10622137B2 (en) * | 2016-07-19 | 2020-04-14 | Fanuc Corporation | Three-phase AC reactor having external connection position change unit and manufacturing method thereof |
US11551854B2 (en) | 2016-07-19 | 2023-01-10 | Fanuc Corporation | Method for manufacturing a three-phase AC reactor having external connection position change unit |
US10867745B2 (en) * | 2017-07-19 | 2020-12-15 | Futurewei Technologies, Inc. | Inductor structure and method for forming the same |
US20190027303A1 (en) * | 2017-07-19 | 2019-01-24 | Futurewei Technologies, Inc. | Inductor structure and method for forming the same |
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