Patent ID: 7259651
Filing Date: 2007-08-21
Classification: H01F

Abstract:
1. An energy storage coil, comprising: a core having an electrical conductor wound thereabout in a plurality of turns, the turns defining a main zone and at least one first auxiliary zone extending along the core; the main zone having a first end and a second end, the turns in the main zone overlying one another; the first auxiliary zone being arranged adjacent to the first end of the main zone, the turns in the first auxiliary zone arranged to provide the first auxiliary zone with lower parasitic capacitance from turn to turn than the main zone; another first auxiliary zone being arranged adjacent to the second end of the main zone; and second auxiliary zones positioned adjacent to each of the first auxiliary zone, the second auxiliary zones having a different number of the turns and a different spacing of the turns than each of the first auxiliary zones and the main zone.