Abstract: A transformer includes a first bobbin, a second bobbin, and an iron core set, wherein the first bobbin and the second bobbin further include a winding region and a through hole in the center of the bobbin, respectively. The winding region is wound by a winding. The iron core set is coupled to the first and second bobbins. The first and second bobbins are assembled together by a base.

Abstract: A connector includes a terminal base, a main housing including a first housing and a second housing, and a rear cover. The terminal base has a plurality of terminals disposed at a bottom surface of the terminal base. The first housing has a first connecting portion. The second housing has a second connecting portion. The rear cover has two third connecting portions, which are respectively connected to the first connecting portion and the second connecting portion and thus to the first housing, the second housing and the rear cover to cover the terminal base. An assembling method of the connector is also disclosed.

Abstract: An embedded inductor structure includes at least one coil and a magnetic body. The coil is formed by winding a conductive wire from a central portion to both ends. The coil is embedded in the magnetic body.