G - Physics – 11 – B
Patent
G - Physics
11
B
G11B 11/105 (2006.01) G11B 25/04 (2006.01) H01F 7/06 (2006.01)
Patent
CA 2171394
A bias coil assembly (394) for a magneto-optical disc drive has a compact arrangement, wherein a winding (338) is formed about an elongated return yoke (335) having thin terminal extensions (337, 357) that allow the coil to have a relatively short inner diameter for a given number of turns. The assembly is provided with first and second plates (341, 365), at least one of which has a plurality of vertical heat radiating fingers (343) that form a heat sink and limit the temperature rise within the coil. The plates (341, 365) are further provided with side flanges (342) for mounting and additional heat radiation.
Discovision Associates
Smart & Biggar
LandOfFree
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