Semiconductor Components Industries, LLC

YoonJoo You

Bonggeun Chung

Taesung Kim

GwanBon Koo

A planar transformer includes a magnetic core and a multilayer printed circuit board. A primary winding of the planar transformer is formed by winding traces on several layers of the printed circuit board. A layer of the printed circuit board that has a winding trace of the primary winding has a winding trace of another winding of the planar transformer, such as a winding trace of an auxiliary winding or a winding trace of a shield winding. The planar transformer further includes a secondary winding. The secondary winding can be a solid wire or a winding trace on a layer of the printed circuit board.

Planar transformer with multilayer circuit board

A circuit board for an electronic device includes pattern areas on both sides of the circuit board. Each end of a thermistor is electrically connected to electrically conductive pads on pattern areas on the top and bottom sides of the circuit board. An input plug is electrically connected to an end of the thermistor. The input plug is electrically connected to the thermistor by way of an input connector to which the circuit board is inserted.

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Jeonju, South Korea

YoonJoo You