Xiang Gao

Title: Innovations by Inventor Xiang Gao

Introduction

Xiang Gao is a notable inventor based in Chandler, AZ (US). He has made significant contributions to the field of capacitive sensing technology, holding a total of 5 patents. His work focuses on enhancing the efficiency and accuracy of liquid sensing and capacitive sensor monitoring.

Latest Patents

One of Xiang Gao's latest patents is titled "Dual polarity mutual capacitive liquid sensing." This invention features a level sensing controller that includes a signal generator circuit to produce an excitation signal. The controller is designed to route an inverse of the excitation signal to a first polar electrode of a first capacitor, which is coupled to a container holding liquid. Additionally, the controller routes the excitation signal to a second polar electrode of a second capacitor, also coupled to the container. A measurement circuit is included to measure charge at the sensing electrode, determining whether the liquid has reached the level of the second polar electrode based on the measured charge.

Another significant patent is the "Multiple channel capacitive voltage divider scanning method and apparatus." This innovation allows for monitoring the relative capacitance of multiple capacitive sensors using a single ADC conversion. Each capacitive sensor charges a sample and hold capacitor, and after all sensors have charged, a digital conversion of the resulting analog signal is made. This stored digital voltage is then compared to a previously stored value to detect any changes, indicating a proximity or touch event. This method enables efficient monitoring of an entire panel of capacitive sensors while conserving power.

Career Highlights

Xiang Gao is currently employed at Microchip Technology Inc., where he continues to develop innovative solutions in the field of capacitive sensing. His work has contributed to advancements in sensor technology, making it more efficient and effective for various applications.

Collaborations

Xiang collaborates with talented individuals such as Burke Davison and Yann LeFaou, who contribute to the innovative environment at Microchip Technology Inc. Their teamwork fosters creativity and drives the development of cutting-edge technologies.

Conclusion

Xiang Gao's contributions to capacitive sensing technology through his patents and collaborations highlight his role as an influential inventor in the field. His work continues to pave the way for advancements in sensor technology, benefiting various industries.