Delta Electronics, Inc.

Heng-Cheng Chou

Chen-Feng Wu

Hsin-Wei Tsai

Ming Yeh

Yi-Fan Wu

Kao-Tsai Liao

Wen-Pin Feng

I-Chi Cheng

Ren-Jye Huang

Yu-Chan Chen

Kai-Yuan Cheng

Transformers are provided. A transformer comprises a ferromagnetic core unit; a bobbin coupled with the ferromagnetic core unit; at least a winding unit as a primary winding and at least a plate as a secondary winding. Also, some of the winding units can act as a secondary winding. At least a winding unit and at least a plate are alternatively stacked in a staggered manner. A conductive wire is wound around the winding unit.

Transformers and winding units thereof

An electromagnetic interference (EMI) filter includes a first magnetomotive element, a first wire, a second wire, and a second magnetomotive element. The second magnetomotive element forms a closed magnetic loop, which comprises a first portion penetrating a through hole of the first magnetomotive element. Thus, the first wire and the second wire in the Filter filter not only differential mode noise but also common mode noise.

Electromagnetic interference filter

A transformer with good insulation is disclosed. The transformer includes a bobbin, an insulating shell and a core structure. The bobbin is wound with a secondary winding. The insulating shell encloses the bobbin and the insulating shell is wound with a primary winding. Further, the core structure is magnetically coupled to the primary winding and the secondary winding.

Transformer with improved insulation

Growing community of inventors

Taoyuan Hsien, Taiwan

Heng-Cheng Chou