Design of low-energy consumption power supply for wearable exercise heart rate monitoring device
The wearable exercise heart rate monitoring device has high demand for power supply. In the current power sup-ply design process,the power circuit design is complex,the output voltage is not stable,and the energy consumption is high, which cannot meet power supply requirements of wearable exercise heart rate monitoring device. Therefore,a new low-energy power supply for the wearable exercise heart rate monitoring device was designed. In this paper,the internal structure of the low-energy power supply chip is given and the design process of the undervoltage latch module is introduced,which is used to guarantee data acquisition stability. In order to protect the safety of power supply chip,VCC overvoltage protection circuit was designed. Low dropout linear regulators are used to provide power and partial bias voltage for the wearable exercise heart rate monitoring device. In order to meet the low-energy power supply requirement of wearable exercise heart rate monitoring device, an energy consumption feedback unit was designed. Based on the function to be implemented by hardware,software program was compiled. The energy consumption of power supply of wearable exercise heart rate monitoring device can be kept low by means of the PID algorithm. The experimental results show that the energy consumption of the designed power supply is low.
国家科技期刊平台
NSTL
万方数据
维普
