Sensitivity in Low Power Photo-Voltaic Harvesters/Chargers

Solar energy harvesting systems can operate efficiently at relatively high threshold luminance, and they exhibit 0% efficiency below threshold luminance value. This introduces the sensitivity topics where it highlights what is the minimum input power where the efficiency remains acceptable, and the harvester/charger can still operate. The efficacy of solar power harvesters has been a matter of ongoing subject; however, the concept of sensitivity is not explored. The objective of this paper is to discuss the sensitivity topics in the low power solar harvesters and to compare two approaches with their sensitivity and efficiency. These topologies will be dissected, and the experimental results will be demonstrated.