GB1424986A - Electromagnetic device - Google Patents

Electromagnetic device

Info

Publication number
GB1424986A
GB1424986A GB2158374A GB2158374A GB1424986A GB 1424986 A GB1424986 A GB 1424986A GB 2158374 A GB2158374 A GB 2158374A GB 2158374 A GB2158374 A GB 2158374A GB 1424986 A GB1424986 A GB 1424986A
Authority
GB
United Kingdom
Prior art keywords
coils
flux
cycles
current
high frequency
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
Application number
GB2158374A
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.)
RIVAS R V DE
Original Assignee
RIVAS R V DE
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 RIVAS R V DE filed Critical RIVAS R V DE
Publication of GB1424986A publication Critical patent/GB1424986A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00—Variable transformers or inductances not covered by group H01F21/00
    • H01F29/14—Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias
    • H01F29/146—Constructional details

Abstract

1424986 Transformers R V DE RIVAS 15 May 1974 [11 Feb 1974] 21583/74 Heading HIT An electromagnetic arrangement comprises a permanent magnet 10 the magnetic flux from which is made to alternate in direction in a magnetic core member 28 and so generate a current in windings 30, 32 connected to a loadcircuit. Flux switching means 20, 22, 24, 26, may comprise mechanically movable segments in the flux paths 16, 18 of high permeability material or for high frequency operation magnetic cores 36, 38, 40, 42 carrying coils 44, 46, 48, 50 arranged to magnetically saturate segments of the flux paths 16 and 18. By means of diodes (66, 68, 70, 72, Fig. 3, not shown) coils 44 and 50 may be supplied with positive half-cycles of current from a high frequency supply and coils 48, 46 with negative half-cycles.
GB2158374A 1974-02-11 1974-05-15 Electromagnetic device Expired GB1424986A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US44099074A 1974-02-11 1974-02-11

Publications (1)

Publication Number Publication Date
GB1424986A true GB1424986A (en) 1976-02-11

Family

ID=23751038

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2158374A Expired GB1424986A (en) 1974-02-11 1974-05-15 Electromagnetic device

Country Status (1)

Country Link
GB (1) GB1424986A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4077001A (en) * 1976-04-16 1978-02-28 Richardson Frank B Electromagnetic convertor with stationary variable-reluctance members
EP0010502A1 (en) * 1978-10-20 1980-04-30 Hydro-Quebec Variable inductance
FR2472824A1 (en) * 1979-12-27 1981-07-03 Tran Van Sach Static AC power generator - has straight permanent magnets and electromagnets operating from DC, AC or rectifier AC which are mounted in combination with inductor coils
EP0246377A1 (en) * 1986-05-23 1987-11-25 Royal Melbourne Institute Of Technology Limited Electrically-variable inductor
WO2000019458A1 (en) * 1998-09-29 2000-04-06 Modex-Lite Inc. Permanent magnetic core device
WO2010094993A1 (en) * 2009-02-23 2010-08-26 Kherpy Limited Pulse generator (versions)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4077001A (en) * 1976-04-16 1978-02-28 Richardson Frank B Electromagnetic convertor with stationary variable-reluctance members
EP0010502A1 (en) * 1978-10-20 1980-04-30 Hydro-Quebec Variable inductance
FR2472824A1 (en) * 1979-12-27 1981-07-03 Tran Van Sach Static AC power generator - has straight permanent magnets and electromagnets operating from DC, AC or rectifier AC which are mounted in combination with inductor coils
EP0246377A1 (en) * 1986-05-23 1987-11-25 Royal Melbourne Institute Of Technology Limited Electrically-variable inductor
WO2000019458A1 (en) * 1998-09-29 2000-04-06 Modex-Lite Inc. Permanent magnetic core device
WO2010094993A1 (en) * 2009-02-23 2010-08-26 Kherpy Limited Pulse generator (versions)

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee