Wireless power transfer using multiple-transmitters for high stability for position

Abstract

The aim of this study is to optimize the system in the wireless power supply using multiple transmitters by algebraically analyzing the effects of both a circuit parameters and an axis displacement, etc. In addition to these analyses, the other aim is designing, producing and evaluating wireless charger with high stability for position. In the proposed method, we analyzed the situation in which three transmitters are used as power sources. It is turned out that the optimum arrangement of three transmitters is equilateral triangular from Biot-Savart law and circuit equation. In the experiment, transmitted power is measured when the receiver is moved on the vertical plane in regard to central axis of coils. It is confirmed that 4~4.5mW is transmitted at the face-to-face of transmitters and 2.4mW is transmitted at the center of transmitters.

Experimental review of an improving system on wireless power transfer via auto tuning of frequency

“…In (1), 𝑀 is mutual inductance which is made based on electromagnetic induction, and it is recalculate by the changing of disposition of 𝐿 1 and 𝐿 2 as shown in Figure 3. 𝑀 is obtained by Biot-Savart law as (2) [26], [27].…”

Outage probability analysis for hybrid TSR-PSR based SWIPT systems over log-normal fading channels

“…We evaluate the system performance by analyzing the achievable date rate and the OP. Therefore, firstly, we derive the achievable data rate at D as (8).…”

“…Instead, we can exploit the natural resources (wind energy, solar energy) by EH modules to keep the networks energized, although with some limitations because of their fluctuating properties [3], [4]. Thereby, the research community has developed the simultaneous information and power transfer (SWIPT) technology to alter the renewable energy with radio frequency (RF), [5]- [8].…”

DEA-based on optimization of inductive coupling for powering implantable biomedical devices

“…One of the issues of these systems is the implantable device's energy consumption. Most bio-implanted devices, such as cochlear implants, implanted retinal, and implanted microsystems that stimulate and monitor nerve activity and muscle, are now powered by induction [5], [6]. Wireless power transmission, which allows electrical energy to be transmitted over an exterior wall from a source of electricity to an electrical load without the requirement of connecting cables, will become mandatory to use soon.…”