Abstract
Wiring is one of the main challenges in aircrafts. The avionics industry is exploring new schemes to minimize the number of power and data cables to build lighter, more reliable and fuel-efficient aircrafts. In this paper, we describe a novel integrated power harvesting interface to procure power required for avionic sensors. The implemented power harvesting approach is based on a modified power over Ethernet scheme in which the power in the ARINC 825 field (data) bus during its idle times serves as the source for the power conversion chain. A transistor-level design is carried out in CMOSP 0.35 $\mu \text{m}$ (AMS) 3.3 V/5 V technology and the system performance is investigated under various conditions to improve its efficiency. From the experimental tests, an overall efficiency of 60 % was achieved and the harvesting device provided an output power of 10.08 mW for feeding sensors. Reported experimental results proved that the proposed power recovery scheme could serve as a power recovery unit to supply embedded sensors.
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