Delta Electronics, Inc.

Yi Lin Chen

Chih-Ming Chen

Hong-Jian Gan

Zhi-Liang Zhang

Alpha J Zhang

Chia-Ming Liu

Po Yu Wei

Yao-Jian Huang

A bobbin for use in a magnetic module is provided. The bobbin comprises a winding body, a first plate and a second plate. The winding body is disposed between the first plate and the second plate, and further comprises a first end, a second end and a through hole. The first end comprises a first buckling portion, and the through hole penetrates the first end and the second end. The first plate includes a second buckling portion and a first opening, while the second buckling portion is adapted to engage with the first buckling portion. The second plate includes a second opening, and the second plate is engaged with the second end of the winding body.

Bobbin and magnetic module comprising the same

The present invention proposes a synchronous rectifier with burst mode control. A synchronous rectifier includes a transformer having a primary winding electrically connected to a power source, a secondary winding, a first auxiliary winding, and a second auxiliary winding, a first switch and a second switch electrically connected to the secondary winding and control terminals of the first switch and the second switch individually connected to the first and second auxiliary windings for being either self-driven directly from voltages of the auxiliary windings, a third switch electrically connected between the first switch and the first auxiliary winding in series, a fourth switch electrically connected between the second switch and the second auxiliary winding in series, a detecting circuit electrically connected to an output terminal of the synchronous rectifier for detecting a load status, and a control circuit electrically connected to the detecting circuit for enabling the third switch and the fourth switch when the load status is at a heavy load and disabling the third switch and the fourth switch when the load status is at a light load.

Synchronous rectifier with burst mode control

Growing community of inventors

Taoyuan Hsien, Taiwan

Yi Lin Chen