Introduction: Nanjing Tuowei is a specialized company engaged in the design and sales of application specific integrated circuits. It was established on May 8, 2003 and is located in a national software park base. With years of experience in integrated circuit design, especially in low-power power management integrated circuits, microcontroller chips, CMOS image sensor chips, and other mixed signal circuits, we are in a leading position in China, forming a development pattern from design and development, product testing, system integration, technical support to industrial application.