Abstract:
The concept and development of an independent energy harvesting mechanism
functioning intermittently are described in this paper. A power management
circuit (PMC) that is self-regulating, an energy scavenging module, a circuit for
charging batteries, as well as an electronic load are all a component of the
system that has been proposed. This proposed circuit is designed to attain a
fixed output power with a diverse input range. In the unavailability of an
additional voltage supply, the PMC can react, maintain, and smartly control the
electronic load's power supply. The self-powered energy accumulating
technique is expected to be used in situations when supplied power is
inadequate to drive the load properly, such as Internet of Things (IoT)
applications. IoT is a dispersed architecture of reduced-power, limited-storage,
lightweight, and nodes that are adaptive. The majority of embedded IoT devices
and low-power IoT sensors are driven by short-life batteries that must be
replaced every few years. This procedure is expensive and efficient energy
regulation could be critical in enabling energy savings for connecting IoT
devices. Experiments with the proposed PMC show that the voltage stored in
the capacitor remained mostly fixed at 3.3V at widely diverse inputs that vary
from 850mV to 4V. At 3.5V input voltage, a peak efficiency of 88.67% is achieved
while the load resistance considered is 230Ω.
