METHOD FOR DETECTING OPTICAL SIGNAL IN QUANTUM NETWORKS

The issue of creating a wireless charging system for an on-board battery of an unmanned aerial vehicle(UAV) is considered, taking into account the need to balance the voltages of its elements. When designingthe system, based on a brief overview of the principles of wireless energy transmission, the principleof using magnetically coupled circuits is taken as the most suitable in terms of its technical and economicproperties. The aim of the work is to develop a circuit solution for a UAV's wireless battery chargingsystem with the ability to balance voltages both during charging and during load operation. The use ofsuch a system will improve the safety of battery operation and extend its service life by leveling the degreeof wear (aging) of the elements. As a result of the research, a circuit was developed and an experimentalsample of the specified wireless charging system was manufactured. When synthesizing the circuit, thetask was to minimize the number of components in the power circuits in order to reduce the mass of thesystem and its cost. The maximum power of the experimental wireless charging system exceeds 100 Watts(25 V · 4 A) and is somewhat excessive for an on-board battery with a capacity of 1,500 mAh. Forcedcooling of the receiving part is not required. The weight of the receiving part mounted on an unmannedaerial vehicle is 79 g (40 g is the receiving coil and 39 g is the electronics unit) and has reserves for reductionby reducing the cross–section of the receiving coil conductors, using a textolite with a lowerthickness in the electronics unit, sealing the installation and using a two–sided arrangement of components.Laboratory tests have been carried out, confirming the operability of the proposed technical solutions,and the effectiveness of balancing during charging has been evaluated. In order to evaluate theeffectiveness of the balancing system during the experiments, the output resistance of the receiver (U/I)was calculated relative to one of the elements of the on-board battery when the voltage on it changes.The result was 1.9 ohms with a charge current of 0.8 A (6S 1500 mAh battery).