Zhigan Wu

Title: Innovations by Zhigan Wu

Introduction

Zhigan Wu is a prominent inventor based in Shanghai, China. He has made significant contributions to the field of motor control technology, holding a total of 8 patents. His work focuses on enhancing the efficiency and functionality of brushless direct current motors (BLDCM).

Latest Patents

One of his latest patents is titled "Method and circuit for controlling sensorless single-phase BLDCM." This invention proposes a method and circuit for controlling a sensorless single-phase BLDCM that includes a power supply circuit, an inverter, a BEMF detecting circuit, and a controller. The controller analyzes the status of the back electromotive force (BEMF) to control the BLDCM accordingly. The method is based on the motor winding time-sharing theory, allowing the winding to function as both a driving and sensing element depending on the BEMF's absolute value.

Another notable patent is the "Method for starting single phase BLDCM having asymmetrical air gap." This method involves several steps to start a motor with a stator, rotor, winding, and asymmetrical air gap. The process includes exciting the winding with a current impulse to position the rotor accurately, gradually decreasing the current amplitude to achieve a near-zero rotating speed.

Career Highlights

Zhigan Wu is currently employed at Delta Electronics, Inc., where he continues to innovate in the field of motor control. His expertise in developing advanced control methods for BLDCMs has positioned him as a key figure in the industry.

Collaborations

He has collaborated with notable coworkers such as Jianping Ying and Jin Wang, contributing to various projects that enhance motor technology.

Conclusion

Zhigan Wu's innovative work in motor control technology has led to significant advancements in the efficiency and functionality of BLDCMs. His contributions are shaping the future of motor technology and have established him as a leading inventor in his field.