Company Filing History:
Years Active: 2002-2005
Title: Fengtai Huang: Innovator in Motor Control Technologies
Introduction
Fengtai Huang is a notable inventor based in Windsor, CA (US). He has made significant contributions to the field of motor control technologies, holding a total of 4 patents. His work focuses on enhancing the efficiency and performance of permanent magnet synchronous motors.
Latest Patents
One of Fengtai Huang's latest patents is titled "Circuit configuration for permanent magnet synchronous motor control." This invention includes circuits and methods for use with an integrated circuit chip that has internal back EMF estimation to control a permanent magnet synchronous motor. The design features an AC current feedback circuit, a scaling circuit, and a current regulator. During operation at very low speeds, the speed regulator operates in an open-loop control mode due to back EMF detection limitations of the IC chip, with only the current regulator active. A feedback current signal, along with a user-defined command current signal, serves as the input for the current regulator, which controls the AC motor current and drives the motor speed from a standstill. Once the motor speed reaches a certain level, the measured back EMF from the IC chip is sufficient to estimate the motor speed. This estimated speed is then compared with a user-defined command speed, and the error between these two signals provides the input for a speed regulator.
Another significant patent by Huang is related to "Multilevel inverter control schemes." This invention involves a multilevel inverter control system designed to minimize the area between a target waveform and a step signal of a multilevel inverter.
Career Highlights
Fengtai Huang is currently employed at Ballard Power Systems Corporation, where he continues to innovate in the field of motor control technologies. His work has been instrumental in advancing the capabilities of electric motors and inverters.
Collaborations
Throughout his career, Huang has collaborated with notable colleagues, including Bing Cheng and Duo Deng. Their combined expertise has contributed to the development of cutting-edge technologies in the industry.
Conclusion
Fengtai Huang is a distinguished inventor whose work in motor control technologies has led to several important patents. His contributions continue to influence the field and enhance the performance of electric motors.