Toroidal inductor design for improved q

Details Toroidal inductor design for improved q Toroidal inductor design for improved q

H - Electricity

01

F

H01F 27/28 (2006.01) H01F 17/02 (2006.01) H01F 41/04 (2006.01)

Patent

CA 2618688

A toroidal inductor (100) and method of forming same. The invention is intended to decrease the direct current resistance (DCR) of the toroidal inductor circuit. Thus, an increase in the quality factor (Q) of the circuit is produced. The toroidal inductor includes a coil formed from an elongated conductor extending around a core material and defining a plurality of turns. The elongated conductor is comprised of one or more coil segments. The coil segments are arranged in an alternating pattern of a first type segment (101) and a second type segment (102). Each of the coil segments of the first type includes a plurality of elongated parallel conductors (104, 105) spaced apart and electrically connected by conductive links (108) at predetermined intervals along their respective lengths. The coil segments of the second type are formed of a single conductor defined by a conductive via (302, 304) formed in the substrate.

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