Chung-Hui Yeh

Title: Innovations of Chung-Hui Yeh

Introduction

Chung-Hui Yeh is a notable inventor based in Taipei County, Taiwan. He has made significant contributions to the field of motor technology, holding a total of 4 patents. His work focuses on enhancing the efficiency and functionality of motor systems.

Latest Patents

One of his latest patents is the "Angle detection apparatus and method for rotor of motor." This invention includes a period counter, a step period generator, and an angle generator. The period counter receives a rotor sensing signal and calculates various time ranges of the pulses from the rotor sensing signal. The step period generator generates a ratio value and an error signal based on the average time range value and a set value. It further adjusts the ratio value according to the error signal, generating a step time based on the adjusted ratio value and the average time range value. The angle generator then uses the step time and the rotor sensing signal to obtain an angle detection result.

Another significant patent is the "Constant-speed control circuit for BLDC motors." This speed-control circuit includes a pulse generator, a current source circuit, a filter circuit, an error amplification circuit, and a PWM circuit. The pulse generator detects the speed signal of the BLDC motor to generate a pulse signal. The filter circuit works with the current source circuit to produce an average signal. The error amplification circuit generates a speed-control signal by receiving the average signal and a speed-reference signal. The PWM circuit then generates a switching signal to drive the BLDC motor based on the speed-control signal.

Career Highlights

Chung-Hui Yeh is currently employed at System General Corporation, where he continues to innovate in the field of motor technology. His work has been instrumental in developing advanced motor control systems that enhance performance and reliability.

Collaborations

Chung-Hui Yeh has collaborated with notable colleagues such as Pei-Sheng Tsu and Yi-Min Hsu. Their combined expertise has contributed to the successful development of various innovative technologies.

Conclusion

Chung-Hui Yeh's contributions to motor technology through his patents and collaborations highlight his role as a significant inventor in the field. His work continues to influence advancements in motor control systems, showcasing the importance of innovation in engineering.