DEVICE WITH INCREASED NOISE IMMUNITY FOR MEASURING THE POWER CONSUMPTION BY MICROCONTROLLER

Abstract

As a real drive force of competitiveness and productivity for such sectors as healthcare, agriculture or industry 4.0, the IoT market is transforming business models and practices. The main task is developing applications for microcontrollers with high computing potential with limited hard and soft resources. For satisfaction both requirements high performance and low power, needs a detailed analysis of the software and hardware for IoT modules is required, the "heart" of which is the microcontroller.

Flexible, promising and low-cost is analysis the program code that into the MCU memory. However, an universal method and resources for this have not yet been obtained.

Everything is explained by the fact that the dominant manufacturing element base technology is (CMOS). This technology reduces the current consumption of the circuit in standby mode to about 0, and at the time of activation it can reach 200 times more. The frequency of the IC is two times less than the frequency of the clock generator. For to work under such conditions, the MCU power supply must have a low dynamic internal resistance. Also the known measurement systems have poor noise resistance to a 220V/50Hz network. These interferences affect the measuring process of the software energy execution.

Therefore, in this paper proposed a device with increased noise immunity for measuring the power consumption by microcontroller as part of IoT modules.