Insulation and integrated heat sink for high frequency, low...

Details Insulation and integrated heat sink for high frequency, low... Insulation and integrated heat sink for high frequency, low...

2006-11-28

2006-11-28

Mai, Anh (Department: 2832)

Inductor devices

Coils of special configuration

Toroidal

C336S182000, C336S181000

Reexamination Certificate

active

07142085

ABSTRACT:
Toroidal transformer and inductor configurations are described that allow for greater heat transfer away from internal device components. The inventive transformer allows for higher thermal and electrical efficiency, as well as for more efficient use of expensive components, such as copper wire. In one embodiment, a toroidal transformer provides access for cooling air by forming the primary winding from a single layer of thick wire and a secondary winding of few turns such that most of the primary winding is exposed to air flow. In another embodiment, a heat sink is positioned between the core and primary windings to conduct heat away from the transformer.

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