Group 1 - Jiangsu Yunyi Electric Co., Ltd. has obtained a patent for a "Hall sensor circuit for 12V automotive generator systems," with the authorization announcement number CN 223271823 U, and the application date is October 2024 [1] - The patent describes a Hall sensor circuit that includes a detection module with three Hall sensor chips (IC1, IC2, IC3) connected to a power supply module, designed to improve sensitivity and reduce errors in 12V generator systems [1] - The design enhances the anti-interference capability against disturbances generated by the generator itself, making it suitable for various environments and working conditions [1] Group 2 - Jiangsu Yunyi Electric Co., Ltd. was established in 2007 and is located in Xuzhou, primarily engaged in the automotive manufacturing industry [2] - The company has a registered capital of 878.14 million RMB and has invested in 14 enterprises, participated in 23 bidding projects, and holds 539 patent records [2] - Additionally, the company has 44 trademark records and 13 administrative licenses [2]