Location History:
- Taipei, TW (2011)
- Taoyuan Shien, TW (2011)
- Taoyuan, TW (2023)
Company Filing History:
Years Active: 2011-2023
Title: Innovations of Lung-Jay Cheng
Introduction
Lung-Jay Cheng is a notable inventor based in Taipei, Taiwan. He has made significant contributions to the field of electrical engineering, particularly in the development of methods and apparatuses for motor control systems. With a total of 3 patents to his name, Cheng continues to push the boundaries of innovation in his industry.
Latest Patents
One of Cheng's latest patents is titled "Method of estimating D-Q axis inductance of permanent magnet synchronous motor." This method involves building an equivalent motor control block by enabling two of the three phases while disabling the remaining one and locking the rotor. It incorporates a back EMF observer into a DC motor control block, allowing for the estimation of back EMF and the calculation of d-q axis inductance through a series of systematic steps.
Another significant patent is the "Dead-time compensation apparatus of PWM inverter and method thereof." This method is designed for PWM inverters that drive induction motors using constant V/f control. It calculates the root-mean-square current of the inverter's output and utilizes a lookup table to derive a dead-time compensation voltage. This innovation enhances the efficiency of operating induction motors, particularly under low-speed and light-load conditions.
Career Highlights
Lung-Jay Cheng is currently employed at Delta Electronics, Inc., a leading company in the field of power and thermal management solutions. His work at Delta has allowed him to apply his innovative ideas and contribute to advancements in motor control technologies.
Collaborations
Cheng has collaborated with several talented individuals in his field, including Ting-Chung Hsieh and Shih-Chieh Liao. These collaborations have fostered a creative environment that encourages the exchange of ideas and the development of groundbreaking technologies.
Conclusion
Lung-Jay Cheng is a prominent inventor whose work has significantly impacted the field of electrical engineering. His innovative patents and contributions to Delta Electronics, Inc. highlight his dedication to advancing technology in motor control systems.