To provide an improved toroidal inductor 100 wherein quality factor Q is increased by reducing direct current resistance of the inductor, and a method of forming the same.
The invention is intended to reduce the direct current resistance (DCR) of a 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 comprises 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 and 105 spaced apart and electrically connected by conductive links at predetermined intervals along their respective lengths. The coil segments of the second type are formed of a single conductor defined by conductive vias 302 and 304 formed in the substrate.
| WO/2002/026009 | SLEEVED CASE DESIGN FOR ADJUSTABLY INCREASING CREEPAGE DISTANCE |
| JP2009043886 | COMMON MODE CHOKE COIL |
PAYAN BAYARDO A
PROVO TERRY
| JP2004006458A | 2004-01-08 | |||
| JP2002289436A | 2002-10-04 | |||
| JP2005259878A | 2005-09-22 | |||
| JP2006165212A | 2006-06-22 | |||
| JP2006173145A | 2006-06-29 |
| WO2005027193A2 | 2005-03-24 | |||
| WO2005099280A2 | 2005-10-20 | |||
| US20030112114A1 | 2003-06-19 | |||
| WO2004112138A1 | 2004-12-23 |
Shinsuke Onuki
Tadashige Ito
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