Company Filing History:
Years Active: 2020-2025
Title: Lichang Cheng: Innovator in Capacitive Sensing Technology
Introduction
Lichang Cheng is a prominent inventor based in Shanghai, China. He has made significant contributions to the field of capacitive sensing technology, holding a total of 6 patents. His work focuses on developing innovative solutions that enhance the functionality and efficiency of various devices.
Latest Patents
One of Lichang Cheng's latest patents is for a capacitive-sensing rotary encoder. This apparatus includes a rotary encoder that comprises a stator, a rotor, and a controller. The stator is designed with an opening that surrounds a portion of a rotatable shaft, along with a transmit region and a receive region. The rotor also has an opening for another portion of the rotatable shaft, featuring an annular conductive region and at least one conductor that is electrically coupled with this region. The controller is configured to transmit and receive signals, determining the proximity of the conductor to the receive region based on the received signal.
Another notable patent involves methods and apparatus to determine the position of a rotatable shaft of a motor. This apparatus includes a sensor printed circuit board (PCB) that is mounted to a motor. The sensor PCB contains multiple capacitive sensors, each with capacitances that change as a conductor moves relative to the sensor PCB during motor operation. The controller, which is electrically coupled to the sensor PCB, determines the position of the rotatable shaft based on these capacitances.
Career Highlights
Lichang Cheng is currently employed at Texas Instruments Corporation, where he continues to innovate and develop advanced technologies. His work has significantly impacted the field of motor control and sensing applications.
Collaborations
Throughout his career, Lichang Cheng has collaborated with talented individuals such as Rujun Ji and Jun Zhang. These collaborations have fostered a creative environment that encourages the development of cutting-edge technologies.
Conclusion
Lichang Cheng is a distinguished inventor whose work in capacitive sensing technology has led to multiple patents and advancements in the field. His contributions continue to influence the development of innovative solutions in motor control and sensing applications.
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