Hui-Chun Hsu

Title: Innovations of Hui-Chun Hsu

Introduction

Hui-Chun Hsu is a notable inventor based in Bade, Taiwan. He has made significant contributions to the field of frequency synthesis systems, holding a total of 3 patents. His work focuses on enhancing the stability and bandwidth of these systems, which are crucial in various electronic applications.

Latest Patents

Hsu's latest patents include a frequency synthesis system with self-calibrated loop stability and bandwidth. This innovative system outputs an output signal based on an input signal and comprises several key components, including a detector, a charge pump, a filter, a controllable oscillator, and a programmable frequency divider. The detector generates a detection signal by analyzing the logic level difference between the input signal and a feedback signal. The charge pump, connected to the detector, produces a control signal based on this detection signal. The filter then generates a tuning signal from the control signal, which is utilized by the controllable oscillator to produce the output signal. The programmable frequency divider is responsible for generating the feedback signal based on the output signal, with the filter functioning as a discrete time loop filter.

Another patent by Hsu describes a similar frequency synthesis system, emphasizing the self-calibrated loop stability and bandwidth. In this system, the detector again produces a detection signal based on the difference between the input and feedback signals. The charge pump creates a control signal, while the filter generates both a tuning signal and a source current. A bias circuit produces first and second bias signals, and the controllable oscillator generates a differential output signal at a specific frequency. The system also includes a differential-to-single converter, a programmable frequency divider, and a current mirror circuit that utilizes the source current to produce a mirror current. A compensation circuit is included to adjust for variations in the damping factor and the bandwidth-to-reference frequency ratio.

Career Highlights

Hui-Chun Hsu is currently employed at Sunplus Technology Co., Ltd., where he continues to innovate in the field of electronic systems. His work has been instrumental in advancing the technology behind frequency synthesis, making significant impacts in various applications.

Collaborations

Hsu collaborates with Chun-Liang Chen, contributing to the development of advanced technologies in their field.

Conclusion

Hui-Chun Hsu's contributions to frequency synthesis systems demonstrate his expertise and innovative spirit. His patents reflect