Patents by Inventor Lvchao Huang

Lvchao Huang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240036080
    Abstract: Disclosed are an analog quantity acquisition method and apparatus. An acquisition circuit with a zero flux current transformer is first used to acquire a current signal, where the acquisition circuit with the zero flux current transformer includes the zero flux current transformer, a compensating winding, and a dynamic detection unit, and the compensating winding generates a reverse excitation potential to counteract an excitation current and eliminate impacts of a ratio error and a phase angle error on accuracy. A multi-segment amplification circuit is used to perform segmented amplification on different ranges of the current signal, and full-range current acquisition is achieved by using different amplification circuits. An analog-to-digital converter chip is used to convert an amplified current signal into a digital signal. The acquisition circuit with the zero flux current transformer is used to eliminate the impacts of the ratio error and the phase angle error on the measurement accuracy.
    Type: Application
    Filed: September 4, 2023
    Publication date: February 1, 2024
    Inventors: Zhu Liu, Wenjing Li, Yunpeng Li, Yonggui Wang, Chuanjian Cui, Lvchao Huang, Xueyu Han, Jinguo Fang, Xiao Feng, Xiaokang Lin, Yuan Gao, Shunhui Luo, Shuying Cheng, Tengfei Dong, Chao Zhan, Afeng Tan