Chao Liang

Title: Chao Liang: Innovator in Circuit Design

Introduction

Chao Liang is a prominent inventor based in Suzhou, China. He has made significant contributions to the field of circuit design, holding a total of 4 patents. His work focuses on innovative solutions that enhance the functionality and efficiency of electronic systems.

Latest Patents

One of Chao Liang's latest patents is a built-in-self-test circuit for sigma-delta modulators. This circuit is designed to connect to a processor and a sigma-delta modulator (SDM). It includes an averaging circuit, a reference signal generator, and a comparator. The averaging circuit calculates an average of a sum of a set of bit signals from the SDM output signal over a specified time period, generating an average SDM signal. The reference signal generator produces a reference SDM signal based on the SDM input signal. The comparator then compares the voltage levels of the average SDM and reference SDM signals against a threshold value, generating a test output signal based on this comparison.

Another notable patent is the variable frequency relaxation oscillator. This system comprises a relaxation oscillator and a frequency control (FC) unit. The oscillator includes first and second oscillator sub-circuits and a latch. The first and second oscillator sub-circuits receive control signals from the FC unit to manage their outputs to the latch. The latch outputs a variable frequency feedback signal to the FC unit. The FC unit receives a frequency control signal to regulate the oscillator output frequency and generates control inputs based on this signal and the feedback signal. This design ensures that changes to the oscillator frequency are implemented smoothly, avoiding glitches in the output signal.

Career Highlights

Chao Liang has worked with notable companies in the semiconductor industry, including Freescale Semiconductor, Inc. and NXP USA, Inc. His experience in these organizations has allowed him to develop and refine his expertise in circuit design and innovation.

Collaborations

Chao has collaborated with talented individuals in his field, including Jian Zhou and Geng Zhong. These partnerships have contributed to the advancement of his projects and the successful development of his patents.

Conclusion

Chao Liang is a distinguished inventor whose work in circuit design has led to several innovative patents. His contributions to the field continue to influence the development of advanced electronic systems.