# The Impact of Maximum Power Point Tracking Algorithms on Properties of On-Chip PV-Based Energy Harvester for IoT Devices

## TL;DR

This paper analyzes how different MPPT algorithms affect the performance of an energy harvester chip for IoT devices.

## Contribution

The study demonstrates that simple MPPT algorithms can match complex ones in energy harvesting performance while using less chip area and power.

## Key findings

- Simple MPPT algorithms can achieve comparable performance to complex ones in energy harvesters.
- The manufactured EH chip prototype functions as expected and can supply energy for low-power devices.

## Abstract

This article presents the analysis of selected maximum power point tracking (MPPT) algorithms and their influence on developed energy harvester (EH) systems under uniform conditions. The energy harvester is an electronic system that converts available ambient energy to electrical energy and regulates its distribution to the output. The aim is to design an energy harvester with the highest integration rate possible with consideration of area requirements and low power consumption. To improve the overall energy conversion of the developed harvester, we implemented several MPPT algorithms (Pilot Cell, Constant Voltage, Perturb and Observe) into a dedicated MPPT controller that controls the DC-DC converter. Consequently, we experimentally analyzed their impact on the harvester system. Findings show that even simple algorithms with smaller chip areas and lower power consumption can achieve results comparable to more complex ones. The proposed, manufactured and experimentally evaluated EH chip prototype has proven its expected functionality and is therefore fully capable of supplying energy for low-power electronics and battery-operated devices.