Jin Rong Jie·2026-02-02 13:04Group 1 - The core point of the article is that China Tower Corporation has applied for a patent related to a charging control method and device that utilizes both AC and DC inputs, which aims to enhance charging efficiency and reduce hardware costs [1]. Group 2 - The patent application, titled "A Charging Control Method and Device with Mixed AC and DC Input," was published under CN121440836A and was filed on October 2025 [1]. - The charging control method involves selecting control strategies based on external voltage signals and charging load information, optimizing the charging process for both AC and DC sources [1]. - The proposed solution allows the charging station to connect directly to both AC and DC energy storage without needing a PCS inverter, significantly reducing switching losses and hardware costs [1]. Group 3 - China Tower Corporation, established in 2014 and located in Beijing, primarily engages in civil engineering and construction [2]. - The company has a registered capital of approximately 1.76 billion RMB and has made investments in four enterprises, participated in 5,000 bidding projects, and holds 1,087 patents [2].