Design of battery internal resistance monitoring system based on PSoC

摘要

This paper is based on four terminal measuring way of measuring buoy battery internal resistance, in the case of certain current injection frequency and amplitude, by means of the voltage response signal acquisition on both ends of the battery, using the phase-locked amplifier technology, to extract useful signal amplification. Details the battery internal resistance monitoring system based on PSoC4 the design ideas and implementation of internal resistance of the high precision measurement process. The measured data in the Modbus protocol under the first machine.