Design and implementation of online uninterruptible power supply system based on STM32

The application of microprocessors in automation and industry has become more and more extensive, especially the application of embedded microcontroller technology has promoted the development of UPS design. This paper designs an embedded uninterruptible power supply system with adjustable output based on STM32, and uses PID algorithm to optimize the control strategy. The advantage of this system is that the output is adjustable and has high precision, the circuit structure is simple, the output power efficiency is high, the system is small in size, and the cost is low, while the stability and safety of the system are guaranteed.