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1. (WO1994028560) POWER COUPLING
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1994/028560    International Application No.:    PCT/GB1994/001068
Publication Date: 08.12.1994 International Filing Date: 19.05.1994
Chapter 2 Demand Filed:    08.12.1994    
H01F 38/14 (2006.01), H02J 5/00 (2006.01), H02M 3/28 (2006.01)
Applicants: ERA PATENTS LIMITED [GB/GB]; Cleeve Road, Leatherhead, Surrey KT22 7SA (GB) (For All Designated States Except US).
PEDDER, Donald, Austin, Grant [GB/GB]; (GB) (For US Only).
SKINNER, Andrew, John [GB/GB]; (GB) (For US Only)
Inventors: PEDDER, Donald, Austin, Grant; (GB).
SKINNER, Andrew, John; (GB)
Agent: GILL JENNINGS & EVERY; Broadgate House, 7 Eldon Street, London EC2M 7LH (GB)
Priority Data:
9310545.0 21.05.1993 GB
Abstract: front page image
(EN)A power coupling system includes a source unit (1) which is to be connected to a power supply. The source unit (1) includes a first winding (P). A load unit (2) includes a second winding (S). Power is inductively coupled from the first winding to the second winding. The source unit (1) and load unit (2) are readily separable. The second winding (S) is connected in a resonant circuit. An AC voltage applied to the first winding (P) is tuned to the resonant frequency of the load circuit including the secondary winding leakage inductance. The source unit may be tuned automatically to the resonant frequency and may include a phase-locked loop responsive to voltages and currents in the source and the load.
(FR)Un système de couplage de puissance comprend une source (1) qui doit être raccordée à une alimentation. La source (1) comprend un premier enroulement (P). Une charge (2) comprend un second enroulement (S). Le courant est couplé de manière inductive du premier enroulement vers le second enroulement. La source (1) et la charge (2) sont facilement séparables. Le second enroulement (S) est connecté dans un circuit résonnant. Une tension de courant alternatif appliquée au premier enroulement (P) est accordée à la fréquence résonnante du circuit de charge comprenant l'inductance de fuite de l'enroulement secondaire. La source peut être automatiquement accordée à la fréquence résonnante et peut comporter une boucle à verrouillage de phase sensible aux tensions et courants de la source et de la charge.
Designated States: AT, AU, BB, BG, BR, BY, CA, CH, CN, CZ, DE, DK, ES, FI, GB, GE, HU, JP, KG, KP, KR, KZ, LK, LU, LV, MD, MG, MN, MW, NL, NO, NZ, PL, PT, RO, RU, SD, SE, SI, SK, TJ, TT, UA, US, UZ, VN.
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)