Chien-Tsun Hsu

Title: Chien-Tsun Hsu: Innovator in Power Conversion Technologies

Introduction

Chien-Tsun Hsu is a prominent inventor based in Taipei, Taiwan. He has made significant contributions to the field of power conversion technologies, holding a total of 7 patents. His innovative approaches have advanced the efficiency and functionality of quasi-resonant converters.

Latest Patents

One of Hsu's latest patents is titled "Advanced frequency reduction of quasi-resonant converters." This method involves detecting a valley point of a resonant waveform of the QR converter by monitoring the voltage level as it falls below a first threshold voltage. A blanking time is established from the start of a QR conversion cycle to the valley point. This blanking time can be extended in response to a reduction in output loading, while keeping the primary current at a specified level. The primary current can then be reduced further while maintaining the maximum blanking time as output loading decreases.

Another notable patent is "Alternating valley switching for power converter." This invention features an alternating valley switching controller that includes a valley detection circuit and an alternating circuit. The valley detection circuit is connected to an auxiliary winding of a transformer to produce a valley-detection signal. The alternating circuit modifies the switching periods of a switching signal based on both a blanking-window signal and the valley-detection signal, allowing for improved control over the power conversion process.

Career Highlights

Chien-Tsun Hsu has worked with several notable companies throughout his career, including System General Corporation and Semiconductor Components Industries, LLC. His experience in these organizations has allowed him to refine his skills and contribute to various innovative projects in the field of power electronics.

Collaborations

Hsu has collaborated with talented individuals such as Cheng-Sung Chen and Ta-Yung Yang. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies in power conversion.

Conclusion

Chien-Tsun Hsu is a distinguished inventor whose work in power conversion technologies has made a lasting impact on the industry. His innovative patents and collaborations highlight his commitment to advancing technology and improving efficiency in power systems.