Da-Jeng Yao

Title: Da-Jeng Yao: Innovator in Power Electronics

Introduction

Da-Jeng Yao is a prominent inventor based in Hsinchu, Taiwan. He has made significant contributions to the field of power electronics, holding a total of 14 patents. His innovative work focuses on enhancing the efficiency and performance of power conversion technologies.

Latest Patents

Among his latest patents is the D-mode GaN transistor synchronous rectifier and power converter. This invention features 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, ensuring that the first switch remains turned on. 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.

Another notable invention is an automatic powering device that includes a dielectric layer, a driving layer, a plurality of electrodes, and a droplet. The dielectric layer has a first surface and a second surface opposite to the first surface. The driving layer faces the dielectric layer, forming a channel between them. The driving layer features a series of hydrophilic surfaces staggered with hydrophobic surfaces. The electrodes are positioned at the second surfaces and are electrically connected while remaining spaced apart. The droplet flows within the channel, influenced by the hydrophilic and hydrophobic surfaces.

Career Highlights

Da-Jeng Yao has worked with esteemed institutions such as Tsinghua University and the Industrial Technology Research Institute. His work in these organizations has allowed him to advance his research and contribute to the development of innovative technologies in power electronics.

Collaborations

He has collaborated with notable colleagues, including Kea-Tiong Tang and Hsin Chia Chen. Their joint efforts have further propelled advancements in their respective fields.

Conclusion

Da-Jeng Yao's contributions to power