scholarly journals Harmonic distortion considerations for an integrated WPT-PLC system

2020 ◽  
Vol 7 (1) ◽  
pp. 33-41
Author(s):  
Abdelmajid Sarraj ◽  
Wael Dghais ◽  
S. Barmada ◽  
M. Tucci ◽  
M. Raugi
Keyword(s):  
Channel Capacity ◽  
Power Efficiency ◽  
Electromagnetic Compatibility ◽  
Data Transfer ◽  
Impedance Matching ◽  
Harmonic Distortion ◽  
Wireless Power ◽  
High Data ◽  
Noise Disturbances ◽  
Class E

AbstractThis paper presents design considerations for an integrated wireless power transfer (WPT) and power line communication (PLC) system (e.g. WPT-PLC). The main goal is to enable wireless charging of mobile electronic products, along with high data rate communication over the shared wireless inductive resonant channel. Starting from a couple of resonant coils, characterized by the S-parameters matrix, the design of an impedance matching network and decoupling filters is carried out to better decouple power and data signals. A pulse-driven class-E power amplifier (PA) and a rectifier are first conceived based on the measured S-parameters and load-pull characterizations. Second, a sine-driven class-E power link, operating at 6.78 MHz, is proposed to reduce the total harmonic distortion of the integrated WPT-PLC system. These design steps aim to ensure high-power efficiency and low harmonic distortion of the class-E PA in order to mildly affect the channel capacity of the PLC. The harmonic interferences of the pulse-driven and sine-driven class-E power links are compared and discussed, together with the electromagnetic compatibility levels, the channel capacity, and the noise disturbances of the PLC channel in order to guarantee an optimized power and data transfer in the integrated WPT-PLC system.

scholarly journals The design of IPT system for multiple kitchen appliances using class E LCCL circuit

2020 ◽  
Vol 10 (4) ◽  
pp. 3483
Author(s):  
N. X. Yin ◽  
Shakir Saat ◽  
S. H. Husin ◽  
Y. Yusop ◽  
M. R. Awal
Keyword(s):  
Power Efficiency ◽  
Power Transmission ◽  
Impedance Matching ◽  
Physical Contact ◽  
Wireless Power ◽  
Load Impedance ◽  
Load Variations ◽  
Inductive Approach ◽  
Ac Current ◽  
Class E

Since many years ago, kitchen appliances are powered up by cable connected. This create a troublesome case as wire might tangle together and cause kitchen table messy. Due to this, wireless power technology (WPT) is introduced as its ability is to transmit power to load without physical contact. This leads to cordless solution better in safety as the product can be completely seal, highly expandable power range. This work focuses on the design of WPT based on inductive approach to power up multiple kitchen appliances. The selection of inductive approach over its partners capacitive and acoustic is mainly due to high power efficiency. Class E inverter is proposed here to convert the DC to AC current to drive the inductive link. A 1 MHz operating frequency is used. To ensure the circuit is robust with load variations, an LCCL impedance matching is proposed. This solution is table to maintain the output power if there is a slight change in load impedance. Finally, the developed prototype is able to supply 50V utput which can achieve power transmission up to 81.76%.

Simulation and Design of Wireless Energy Transmission for Implantable Micro-Electromechanical Devices

2013 ◽  
Vol 765-767 ◽  
pp. 2345-2350
Author(s):  
Jian Chen ◽  
Lei Ma ◽  
Wei Zhang ◽  
Yao Li
Keyword(s):  
High Efficiency ◽  
Impedance Matching ◽  
Design Parameters ◽  
Wireless Power ◽  
Low Loss ◽  
Source Current ◽  
New Type ◽  
Electromechanical Devices ◽  
Topologic Structure ◽  
Class E

The purpose of this study is to describe a novel topologic technology for wireless power transmitting through external coils to multiple implantable micro-electromechanical devices inside the patient body, which is able to solve the dilemma of recharging. Wireless power transmitters are designed based on class π-type topologic structure, which improves existing Class-E power amplifier structure and impedance matching technology. Mathematical Models based on resonating chopper MOSFET and class π-type impedance matching network are introduced to optimize the design parameters. Together with proper capacitors and high-flux, low-loss inductors, an optimal wireless power transmitter with significant characteristics of high efficiency and low loss takes advantage of this brand new type of topologic structure. The author designed and developed the RF oscillator and the actual class E power resonant amplifier. During studies, with the 12V power supply, the voltage of 96.8V is generated on the 50ohm high-power RF load side, along with source current of 2.183A. The efficiency of the system reaches 89.4%, which satisfied the need for implantable micro-electromechanical device.

Exploiting Power Line for Communication Purpose

2015 ◽  
pp. 320-334 ◽  
Author(s):  
Banty Tiru
Keyword(s):  
Channel Capacity ◽  
Communication System ◽  
Electromagnetic Compatibility ◽  
Data Transfer ◽  
Current Trend ◽  
Test Site ◽  
Power Line ◽  
Power Lines ◽  
Important Place ◽  
Simulation Techniques

Power Line Communication (PLC) uses the available power line as a communication medium. The purpose of this chapter is to present the salient features, current trend and future scope of PLC with emphasis in the Indian context. Unlike other channels available, power lines are harsh media for data transfer and require efficient modeling and simulation techniques to propose and implement suitable mitigation schemes for achieving acceptable performance. Designed equipments have to adhere to strict mandates at the national and international levels to account for issues related to electromagnetic compatibility (EMC). In spite of this, PLC is expected to occupy an important place in the networking market in applications of smart grid and as a component of heterogeneous/hybrid communication system. The chapter is also backed by results from experiments carried on a typical power line in a test site with a presentation of noise, transfer characteristics, modeling and an estimate of the channel capacity.

EFFICIENT DATA AND POWER TRANSFER FOR BIO-IMPLANTED DEVICES BASED ON ASK MODULATION TECHNIQUES

2012 ◽  
Vol 12 (05) ◽  
pp. 1240030 ◽  
Author(s):  
SAAD MUTASHAR ◽  
M. A. HANNAN ◽  
SALINA A. SAMAD ◽  
AINI HUSSAIN
Keyword(s):  
Power Amplifier ◽  
Power Efficiency ◽  
Data Transfer ◽  
Software Tool ◽  
Cmos Technology ◽  
Integrated System ◽  
Band Frequency ◽  
Modulation Techniques ◽  
Implanted Devices ◽  
Class E

This paper presents a fully integrated system for implanted micro-system devices with efficient power and data transfer based on amplitude shift keying (ASK) modulation techniques. A proposed efficient class-E power amplifier is presented. The design presents a full transcutaneous inductive powering system to transfer power and data from an outside human body to implanted devices such as implanted microsystems to stimulate and monitor the nerves and muscles with low band frequency of 13.56 MHz according to the industrial–scientific–medical (ISM) band to avoid the tissue damage. A novel ASK demodulator powered with 1.9 V is proposed with a power recovery system. The modulation index is 13% and the modulation rate 7.3% with data rate 1 Mbit/s, and with power efficiency 66%. The system has been designed using 0.35-μm fabricated CMOS technology. The mathematical model is given and the design is simulated using OrCAD PSpice 16.2 software tool and for real-time simulation, the electronic workbench MULISIM 11 has been used to simulate the class-E power amplifier.

scholarly journals Design and Realization of a Multiple Access Wireless Power Transfer System for Optimal Power Line Communication Data Transfer

Energies ◽  
2019 ◽  
Vol 12 (6) ◽  
pp. 988 ◽  
Author(s):  
Sami Barmada ◽  
Mauro Tucci ◽  
Nunzia Fontana ◽  
Wael Dghais ◽  
Marco Raugi
Keyword(s):  
Performance Optimization ◽  
Power Efficiency ◽  
Multiple Access ◽  
Data Transfer ◽  
Wireless Power Transfer ◽  
Access Point ◽  
Power Transfer ◽  
Wireless Power ◽  
Efficient Data ◽  
Wireless Power Transfer System

In this contribution, the authors evaluate the possibility of using separated access points for power and data transfer in a coupled Wireless Power Transfer-Powerline Communication system. Such a system has been previously proposed by the authors for specific applications, in which Wireless Power Transfer (WPT) should take place in a system where data are transmitted over the power grid. In previous works the authors have performed lab tests on a two coils WPT system equipped with a set of filters to also allow an efficient data transfer. When a multiple coil WPT system is chosen, additional possibilities arise: the access point for power and data can be differentiated, with the aim of maintaining the designed power efficiency and increase data transfer capacity. In this study a four coils WPT system is thoroughly analyzed, modelled, implemented and measured, and a set of guidelines for the correct design (in terms of performance optimization) of the data transfer is given.

scholarly journals Internet of Things: A Review on Theory Based Impedance Matching Techniques for Energy Efficient RF Systems

2021 ◽  
Vol 11 (2) ◽  
pp. 16
Author(s):  
Benoit Couraud ◽  
Remy Vauche ◽  
Spyridon Nektarios Daskalakis ◽  
David Flynn ◽  
Thibaut Deleruyelle ◽  
...  
Keyword(s):  
Internet Of Things ◽  
Integrated Circuit ◽  
Power Efficiency ◽  
Data Transfer ◽  
Impedance Matching ◽  
Computational Effort ◽  
Design Framework ◽  
Rf System ◽  
Rf Systems ◽  
Matching Techniques

Within an increasingly connected world, the exponential growth in the deployment of Internet of Things (IoT) applications presents a significant challenge in power and data transfer optimisation. Currently, the maximization of Radio Frequency (RF) system power gain depends on the design of efficient, commercial chips, and on the integration of these chips by using complex RF simulations to verify bespoke configurations. However, even if a standard 50Ω transmitter’s chip has an efficiency of 90%, the overall power efficiency of the RF system can be reduced by 10% if coupled with a standard antenna of 72Ω. Hence, it is necessary for scalable IoT networks to have optimal RF system design for every transceiver: for example, impedance mismatching between a transmitter’s antenna and chip leads to a significant reduction of the corresponding RF system’s overall power efficiency. This work presents a versatile design framework, based on well-known theoretical methods (i.e., transducer gain, power wave approach, transmission line theory), for the optimal design in terms of power delivered to a load of a typical RF system, which consists of an antenna, a matching network, a load (e.g., integrated circuit) and transmission lines which connect all these parts. The aim of this design framework is not only to reduce the computational effort needed for the design and prototyping of power efficient RF systems, but also to increase the accuracy of the analysis, based on the explanatory analysis within our design framework. Simulated and measured results verify the accuracy of this proposed design framework over a 0–4 GHz spectrum. Finally, a case study based on the design of an RF system for Bluetooth applications demonstrates the benefits of this RF design framework.

scholarly journals Preliminary study of 50 W Class-E GaN FET amplifier for 6.78 MHz capacitive wireless power transfer

2020 ◽  
Vol 11 (1) ◽  
pp. 22
Author(s):  
Aam Muharam ◽  
Tarek Mahmoud Mostafa ◽  
Suziana Ahmad ◽  
Mitsuru Masuda ◽  
Daiki Obara ◽  
...  
Keyword(s):  
High Frequency ◽  
Power Efficiency ◽  
Wireless Power Transfer ◽  
Load Parameter ◽  
Resistive Load ◽  
Power Transfer ◽  
Wireless Power ◽  
Preliminary Study ◽  
High Frequency Operation ◽  
Class E

A preliminary study of Class-E radio frequency power amplifier for wireless capacitive power transfer (CPT) system is presented in this paper. Due to a limitation in coupling capacitance value, a high frequency operation of switching power inverter is necessary for the CPT system. A GaN MOSFET offers reliability and performance in a high frequency operation with an improved efficiency over a silicon device. Design specification related to the parallel load parameter, LC impedance matching and experimental analysis of the amplifier is explored. An experimental setup for the proposed inverter and its integration with the CPT system is provided, and the power efficiency is investigated. As a result, by utilizing a 6.78 MHz resonant frequency and a 50 Ω resistive load, 50 W of power has been transmitted successfully with an end to end system efficiency over 81 %. Additionally, above 17 W wireless power transfer was demonstrated successfully in the CPT system under 6 pF coupling with the efficiency over 70 %.

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