Design method of microcontroller-based intelligent accounting device assisted power supply study

Xin Li; Xiaoke Chen; Lin Ou; Weilin Wang

doi:10.1117/12.3015219

6 February 2024 Design method of microcontroller-based intelligent accounting device assisted power supply study

Xin Li, Xiaoke Chen, Lin Ou, Weilin Wang

Proceedings Volume 12979, Ninth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2023); 1297948 (2024) https://doi.org/10.1117/12.3015219
Event: 9th International Conference on Energy Materials and Electrical Engineering (ICEMEE 2023), 2023, Guilin, China

Abstract

To meet the input voltage requirement of onboard chips in intelligent accounting devices, Utilizing the STM32 series microcontroller as the central control unit, a novel integrated Buck circuit voltage regulator applying PID control has been developed, where voltage monitoring and temperature detection are included. To simplify the driving circuit, we shift the switching of the Buck circuit; the use of operational amplifier circuits for voltage sampling and scaling, and the subsequent voltage tracking, makes the feedback signal more stable and not be disturbed. Designed interrupt program for microcontroller based on PID control algorithm, and programs to handle feedback voltage and PID control are included. The finalized voltage stabilization circuit design successfully achieves reliable voltage output, over-temperature shutdown circuitry, and alarm functionality.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Xin Li, Xiaoke Chen, Lin Ou, and Weilin Wang "Design method of microcontroller-based intelligent accounting device assisted power supply study", Proc. SPIE 12979, Ninth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2023), 1297948 (6 February 2024); https://doi.org/10.1117/12.3015219

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