H - Electricity – 01 – F
Patent
H - Electricity
01
F
H01F 17/06 (2006.01) H01F 17/04 (2006.01) H01F 27/29 (2006.01) H01F 27/38 (2006.01) H01J 29/70 (2006.01) H01F 3/10 (2006.01) H01F 19/08 (2006.01)
Patent
CA 2466706
A dual-core inductive device (200) having one or more core elements (210, 211) and a sleeeve (230) adapted to fit over the core element (210, 211). The device (200) is significantly less expensive to produce than prior art transformers having similar characteristics. In one exemplary embodiment, the device (200) includes two cylindrical cores (210, 211) forming a first (end) gap (240) used to adjust the device's differential inductance independent of its common mode inductance. Similarly, a second gap (235) is provided to adjust the device's common mode (leakage) inductance independent of its differential inductance. The substantially independent control afforded by these gaps (235, 240) allows for devices to be designed to simultaneously meet different sets of requirements; e.g.,signal-path specifications and longitudinal inductance requirements. Methods for manufacturing the device(s), and telecommunications filter and splitter circuit applications, are also disclosed.
Dispositif à induction (200) possédant un double noyau comportant un ou plusieurs éléments (210, 211) et un manchon (230) conçu pour être passé au-dessus desdits éléments (210, 211). La fabrication de ce dispositif (200) est considérablement plus économique que les transformateurs de l'état actuel de la technique possédant des caractéristiques analogues. Dans un mode de réalisation, ce dispositif (200) comprend deux noyaux cylindriques (210, 211) constituant un premier entrefer (240) servant à régler l'inductance différentielle de ce dispositif indépendamment de son inductance de mode commun. De même, un deuxième entrefer (235) sert à régler l'inductance de mode commun (fuite) indépendamment de son inductance différentielle. L'indépendance importante des contrôles exercés par ces entrefers (235, 240) permet de fabriquer des dispositifs répondant simultanément à différents ensembles de besoin, par exemple, inductance longitudinale et spécifications signal-trajectoire. L'invention concerne également des procédés servant à fabriquer ce dispositif, ainsi que ses mises en application en tant que filtre de télécommunications et que circuit séparateur.
Excelsus Technologies Inc.
Gowling Lafleur Henderson Llp
Pulse Engineering Inc.
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