Design of Remote Lithium Battery Power Detection and Power Control System

The power input of intelligent application systems generally requires 5V2A. For some application scenarios, a dual power supply mode is adopted, including the main power supply and lithium battery. Under the control of a single-chip microcomputer, the dual power supply mode is automatically switched. The output voltage, current, and power of the power system, as well as the voltage and capacity data of the lithium battery, are measured. The measurement data is remotely sent through the Alibaba Cloud platform, and commands sent by users are received to achieve data transmission and remote power control. Special battery capacity measurement chip MAX17048 and bus voltage and load current measurement chip INA226 are used, making the circuit simple, reliable, and accurate in measurement. The system fully realizes remote data measurement and control, and has practical value.