Dan Chen

Title: The Innovative Contributions of Dan Chen

Introduction

Dan Chen is a prominent inventor based in Taipei, Taiwan. He has made significant contributions to the field of electrical engineering, particularly in the design and optimization of multi-phase buck converters and voltage regulators. With a total of nine patents to his name, Chen's work has had a substantial impact on the efficiency and performance of power management systems.

Latest Patents

One of Chen's latest patents focuses on the "Operating phase number dependent compensation of a multi-phase buck converter." This invention introduces a digital compensator that selects compensation coefficients based on the operating phase number of the converter. By utilizing different compensators for each operational phase, the design improves loop gain bandwidth, transient response, and stability. The multi-phase buck converter is designed to operate with more phase circuits under higher loads and fewer circuits under lower loads, allowing for adaptive compensation that optimizes the control-to-output voltage transfer function.

Another notable patent is the "Using offset cancellation circuit to mitigate beat-frequency oscillation of phase currents in a multiphase interleaved voltage regulator." This invention applies an offset cancellation circuit to each phase of the voltage regulator separately. By increasing the current loop gain of each phase, the design effectively mitigates beat-frequency oscillation in phase currents, particularly when the beat frequency is below the bandwidth of the low-pass filter in the offset cancellation circuit. This approach avoids introducing additional instability, which is a common drawback when increasing current-sensing gain.

Career Highlights

Dan Chen has worked with Richtek Technology Corporation, where he has contributed to various innovative projects. His expertise in power management systems has been instrumental in advancing the company's technological capabilities.

Collaborations

Throughout his career, Chen has collaborated with notable colleagues, including Wei-Hsu Chang and Ching-Jan Chen. These partnerships have fostered a creative environment that has led to the development of cutting-edge technologies in the field.

Conclusion

Dan Chen's contributions to electrical engineering, particularly in the realm of multi-phase buck converters and voltage regulators, showcase his innovative spirit and technical expertise. His patents reflect a commitment to enhancing the efficiency and stability of power management systems, making him a significant figure in the industry.