Tonghe Technology announced that the company has obtained 1 invention patent certificate and 1 utility model patent certificate issued by the State Intellectual Property Office of the People's Republic of China. The invention patent is a wide range frequency adaptive control method based on current-type grid-connected system. Utility model patent is a convenient installation of online rapid detection of battery internal resistance equipment.
The chairman of the company is Ma Xiaofeng. Mr. Ma Xiaofeng: Born in 1968, Chinese nationality, no right of permanent residence abroad, bachelor degree, graduated from Huazhong University of Science and Technology (formerly Huazhong Institute of Technology) Department of Electric Power Engineering, major in high voltage technology and equipment. From 1991 to 1993, he worked at Beijing Yanshan Petrochemical Power Plant; From 1993 to 1998, he worked in Hebei Kehua Communication Equipment Manufacturing Co., Ltd., engaged in technology research and development; From 1998 to August 2012, he worked in Shijiazhuang Tonghe Electronics Co., Ltd., successively serving as the manager, general manager and executive director of the production department; From August 2012 to August 2021, he served as the chairman of the board of directors of the company; At present, he is the chairman and general manager of the company.
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![Suijing Optoelectronics added five new utility model patents[fig]](data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACwAAAAAAQABAAACAkQBADs=)