Huan-Jen Yang

Title: Huan-Jen Yang: Innovator in Brushless DC Motor Technology

Introduction

Huan-Jen Yang is a prominent inventor based in Hsinchu, Taiwan. He has made significant contributions to the field of electrical engineering, particularly in the development of brushless DC motor technology. With a total of 3 patents to his name, Yang's work has paved the way for advancements in motor control systems.

Latest Patents

Yang's latest patents include a brushless DC motor speed controller and a method and device for controlling the speed of brushless DC motors. The brushless DC motor speed controller utilizes commutation signals generated by a magnetic-pole sensor to obtain the necessary speed feedback signal for effective speed control. This innovative controller features an edge detector that generates pulses based on the magnetic-pole sensor's signals, a frequency multiplier to enhance the pulse frequency, and a frequency-to-voltage converter that translates the pulse train into a positive analog voltage proportional to the motor's speed. Additionally, the controller incorporates a motor rotating direction detecting circuit to ascertain the rotation direction of the motor, allowing for precise control of the DC voltage supplied to the motor.

The second patent focuses on controlling the speed of a brushless DC motor in electric vehicles. This method processes the back electromotive force (EMF) waves of the motor to generate a speed feedback signal without the need for traditional feedback elements like DC tachometers or encoders. By synthesizing back EMF signals and utilizing commutation signals, this approach reduces costs and enhances the efficiency of brushless DC motor control systems.

Career Highlights

Huan-Jen Yang is affiliated with the Industrial Technology Research Institute, where he continues to innovate and develop cutting-edge technologies. His work has garnered attention for its practical applications in various industries, particularly in electric vehicles and automation.

Collaborations

Yang has collaborated with notable colleagues, including Tshaw-Chuang Chen and Hong-Shi Chang, contributing to a dynamic research environment that fosters innovation and technological advancement.

Conclusion

Huan-Jen Yang's contributions to brushless DC motor technology exemplify his commitment to innovation and excellence in engineering. His patents not only enhance motor control systems but also pave the way for more cost-effective solutions in the industry.