Transcutaneous energy transfer device

Details Transcutaneous energy transfer device Transcutaneous energy transfer device

A - Human Necessities

61

M

A61M 1/12 (2006.01) H01F 30/08 (2006.01) H02J 3/00 (2006.01) H04B 10/24 (2006.01)

Patent

CA 2074150

An improved transcutaneous energy transfer (TET) device comprises a primary winding for placement on or near a skin surface, and a secondary winding for implantation under said skin surface. A field effect transistor (FET) is arranged to switch said primary coil across an external DC power supply. A tuning capacitor is linked to said primary coil whereby said primary coil, when said FET is turned off, will resonate at its natural frequency thereby compensating for drift in component values and reducing power transfer sensitivity to component drift.

Un dispositif de transfert d'énergie transcutané (TET) amélioré comprend un enroulement primaire à placer sur la peau ou près de la surface de l'épiderme et un enroulement secondaire à implanter sous la surface de l'épiderme en question. Un transistor à effet de champ (TEC) est programmé de façon à commuter la bobine primaire en question à une source d'alimentation c.c. externe. Un condensateur d'accord est lié à la bobine primaire qui, lorsque le TEC est éteint, résonnera à sa fréquence naturelle compensant ainsi la dérive des valeurs de composants et réduisant la sensibilité de transfert d'énergie de la dérive de composants.

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