Wireless Power Transmission and Inverters for Charging Electronic Devices

ELECRICAL AND ELECTRONIC CONTROL
[Author Name(s), First M. Last, Omit Titles and Degrees]
[Institutional Affiliation(s)]

Introduction
Designers and engineers of various projects have in the past been encountering the challenge that
is associated with power including continuity of the supply of the power, an optimization of the
sensor locations, recharging batteries as well as handling moving or rotating objects. Even
though the challenges are still in place, enhanced demands arising from, increased use of mobile
equipment and devices as well as the operations that are carried out in dirty or even wet
surroundings insinuate that the designers and engineers need new approaches that they may use
in the supply of power to different equipment that they use (Aldhaher, Mitcheson, Arteaga,
Kkelis & Yates, 2017). Wireless power transmission as technology has done undergone
sufficient development from the time of Tesla. While Tesla had always made attempts to see an
introduction of worldwide wireless systems of power transmission, the completion of the task
has remained a big challenge owing to insufficient technology as well as lack of enough funds at
the time. Still, to this extent, the technology has not undergone a full exploration and
development to the extent that it is entirely applicable for the various practical purposes.
Benefiting from the developments experienced in the modernization error that different
electronic devices including mobile phones, computers, laptops, tablets, and camera among other
device bring to human beings even though there is contiguous suffering as a result of the
inconvenience of the increase in the number of charging wires and chargers. In the current
industry, a great number of the detectors and sensors of compact electronics are in most cases
installed in places that are not easily accessible (Kim et al., 2018). The replacement of the power
supply systems or elements of such systems presents a very great challenge.
Developments in medical science with regard to critical and sensitive surgeries provide the
patients with an avalanche of implantable devices. One of such critical devices is the artificial
cardiac pacemaker whose batteries require constant replacement. Not possible to evade is that
one more surgery would be required to have the battery inside the body replaced. For all
applications as this among others that are of equal magnitude is sensitivity and criticality, an
ideal solution would revolve around the delivery of power to the electronic devices without
necessarily having to include wires hence evading the replacement of battery (Kim et al., 2018).
Luckily, the recent advances of wireless power transfer technologies offer platforms of numerous
possibilities of charging electronic devices in a wireless manner.
Background
For the case of wireless power transmission systems, the transfer of power to the receivers from
the transmitter is via electromagnetic fields. Hence, wireless power transmission systems may be
grouped as nonradioactive and radiative ways as per the form of electromagnetic fields alongside
the distance of operation between the receiver and the transmitter.
Radiative power occurs when the distance of operation is extensively beyond the carrier wave
wavelength may be released from a transmitting antenna in the nature of electromagnetic waves
moving over a very long distance. The quantity of power released in the form of electromagnetic
waves by an antenna is depending on the ration of the size of the antenna to the wavelength.
Hence, the transmission of the power over a very long distance the size of the antenna should be
such that it is in the order of or greater than the wavelength. Still, the antenna used in the
radiative transfer of power should be such that it is significantly directive or else a significant