Planar transformer and manufacturing method thereof
A planar transformer and coil technology, applied in the field of transformers, can solve the problems of complex manufacturing process, large volume, unfavorable structure and heat dissipation, etc., achieve good consistency and high withstand voltage performance, reduce thickness, and ensure the effect of insulation
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[0034] The embodiments of the present invention will be described in detail below. It should be emphasized that the following description is only exemplary, and is not intended to limit the scope of the present invention and its application.
[0035] See Figure 1 to Figure 5 In one embodiment, an injection-molded planar transformer using alpha winding includes a PCB coil 1, an alpha coil 2, a magnetic core 3, a terminal 4, and a gasket 5. The PCB coil 1 includes a multilayer printed circuit board structure. Taking one of the layers as an example, the printed circuit board is provided with a via 11, a coil winding 12, and the coil winding 12 is printed on the PCB board 13 and connected to the The via holes 11 are connected. A plurality of pads 14 are provided on both sides of the PCB coil 1, and the terminal 4 is installed in the pad 14 by soldering. At the same time, a center hole 15 is provided in the center of the PCB coil, and a recess is provided at the edge of the center ...
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