Article Details

Title · Authors · Abstract · Keywords · DOI · References

Design of Current Self-detection Scheme Based on CKS32F103

ZHANG Zonghang, LAN Yafeng, FU Jianjun

(China Key System and Integrated Circuit Co., Ltd., Wuxi 214072, China)

Section：Electronic Engineering · Vol. 2026, Issue 1 · Pages：32-35 · 2096-4706（2026）01-0032-04 · CLC number：TP368.1；TP216 · Document code：A · DOI：10.19850/j.cnki.2096-4706.2026.01.007

Abstract

To better utilize the Single-chip Microcomputer (MCU) to detect the power consumption current of peripheral module circuits, this paper proposes a design scheme that can detect the power consumption current of the chip itself based on the ARM core embedded MCU CKS32F103. The hardware circuit of this scheme converts the current into voltage through the series connection of a precision resistor. After being amplified by a differential amplifier, the voltage is sampled by the Analog-to-Digital Converter (ADC) integrated inside the MCU. Finally, it completes data operation and processing inside the MCU and outputs the result to the upper computer through the bus interface. Experimental results show that, combined with specific control timing, this scheme realizes the autonomous detection of power consumption current of the MCU in different working modes. It is a flexible, economical, simple, and efficient embedded MCU current detection scheme.

Keywords

CKS32F103; current detection; precision resistor; ADC; voltage sampling

References

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About the authors

Zhang Zonghang (1987-), male, Han ethnicity, from Qianjiang, Hubei, engineer, master's degree, research interests include 32-bit MCU chip design and applications.