Chih-Chiang Wu

Title: Innovations of Chih-Chiang Wu in Power Conversion Technology.

Introduction

Chih-Chiang Wu is a notable inventor based in Hsinchu, Taiwan. He has made significant contributions to the field of power conversion technology, particularly through his innovative patents. His work focuses on enhancing the efficiency and performance of power electronic devices.

Latest Patents

One of Chih-Chiang Wu's key patents is the "D-mode GaN transistor synchronous rectifier and power converter having the synchronous rectifier." This invention features a D-mode GaN transistor synchronous rectifier that includes a power switching module, a peak detection module, and a gate driver module. The peak detection module is designed to store energy when the negative end of the secondary side winding of the power converter is at a high voltage. The power switching module consists of a first switch and a D-mode GaN HEMT as a second switch connected in series. The energy is supplied to the module gate of the power switching module through the gate driver module to maintain the first switch in an "on" state. The gate driver module also conducts the module gate and the module source when the positive end of the secondary side winding is at a low voltage, allowing a clamp circuit to pull the gate-source voltage of the second switch below the threshold, effectively turning it off. This synchronous rectifier replaces conventional diode rectifiers, resulting in lower conduction loss and reduced response ringing.

Career Highlights

Chih-Chiang Wu has worked with several prominent organizations throughout his career. He has been associated with Acbel Polytech Inc., where he contributed to advancements in power electronics. Additionally, he has worked at Tsinghua University, furthering research and development in the field.

Collaborations

Chih-Chiang Wu has collaborated with notable colleagues, including Wei-Hua Chieng and Yi Chang. Their combined expertise has contributed to the success of various projects and innovations in power conversion technology.

Conclusion

Chih-Chiang Wu's contributions to the field of power conversion technology, particularly through his innovative patents, have made a significant impact. His work continues to influence advancements in the efficiency and performance of power electronic devices.