Top PDF Design And Development Of Power Inverter For Inductive Power Transfer (IPT).

Design And Development Of Power Inverter For Inductive Power Transfer (IPT).

Design And Development Of Power Inverter For Inductive Power Transfer (IPT).

Usage rate of electric energy because of number of electrical equipment is overload and not appropriate for single phase user .The effective power transfer is very important because the secondary coil is the types of material determine the amount of power transferred. In that case the power supply is of special concern. This is because in a number of cases where batteries are used, the energy content is too low and batteries have a limited life time.

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A development of class e converter circuit for loosely coupled inductive power transfer system.

A development of class e converter circuit for loosely coupled inductive power transfer system.

A Class E converter circuit has been proposed in our work to increase the efficiency of the power transfer. This is because the Class E converter circuit guarantees that the switching loss is always at a very minimum level [3, 4]. Meanwhile, the capacitor compensation circuit needs to be connected either in series or parallel in order to achieve resonant inductive coupling [5]. This technique will ensure the maximum power transfer to the load. Then, voltage doubler and Darlington circuit is proposed to increase the current and also the voltage at the receiver circuit. Therefore, through the proposed approach, this paper aims to investigate the performance of IPT system at 1MHz using Class E converter and 9V DC supply that is able to power-up the low-power electronic devices.
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Developing A Wireless Charging Concept Via Loosely Coupled Inductive Power Transfer For Electric Vehicles.

Developing A Wireless Charging Concept Via Loosely Coupled Inductive Power Transfer For Electric Vehicles.

The electric vehicle (EV) charging system which uses inductive power transfer (IPT) technique is not a newly found technique of wireless power transfer (WPT) technology. In fact, IPT is the first technique used for WPT. The existing method of IPT technique uses closely coupled magnetic resonance power transfer has limitations. The alignment of the transmitter and receiver affects the power transmission efficiency. Besides that, the charging rate on par with current technology is low. There are many researches done and designs made to curb this issue. In contrast, this project work on the new approach of the IPT technique via loosely coupled IPT (LCIPT) and aims to prove the concept is applicable to electric vehicle charging system. There are many researches have been done on IPT. However, most of the researches done are on the closely coupled IPT and lesser on loosely coupled IPT (LCIPT). Moreover, most research are described theoretically and only simulated as the results. Practically, the system only applied on the EV charging stations. Topics to be discussed covered in this chapter are about the electric vehicle (EV) charging systems, IPT and other WPT methods performance analysis, and the circuits used in the IPT systems such as supply inverters and efficiency compensator circuits.
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The Development Of Wireless Power Transfer Technologies For Low Power Applications: An Acoustic Based Approach.

The Development Of Wireless Power Transfer Technologies For Low Power Applications: An Acoustic Based Approach.

Wireless power transfer (WPT) is the transmission of electrical power across a medium without the use of electrical conductors. There is three major type of WPT which are Acoustic Power Transfer (APT), Inductive Power Transfer (IPT) and Capacitive Power Transfer (CPT). Between these, the APT has the advantages of such as can be used where the EM fields are not allowed, and the efficiency of APT is much higher compared to IPT in terms of greater distance transfer power range and different medium of transfer i.e (body tissue, water, air, etc). Due to this fact, for this project the acoustic method has been considered. This project aims to transfer low power wirelessly by using the acoustic based method. The feasibility of transmitting electric power through some specific surface or material by propagating acoustic waves using piezoelectric transducers was analysed. The efficiency of power transmission for APT has been briefly examined at the different transmission medium. For this project, the metal block and air were chosen as the transfer medium and the efficiency performance of these medium have successfully been analyzed. In the end, a prototype of APT system was developed which was capable of transferring voltage through air at the maximum distance of 10cm at 0.96V. The performances analyses of the developed prototype are discussed and the future recommendation of this method is also presented.
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A Development Of Wireless Power Transfer Using Capacitive Method For Mouse Charging Application.

A Development Of Wireless Power Transfer Using Capacitive Method For Mouse Charging Application.

The most well-known technique in the WPT technology is inductive coupling between transmitter and receiver which is widely applied to most of the applications nowadays [3]. The concept of the inductive power transfer (IPT) is the power is being transmitted to the receiver by electromagnetic induction via inductive coupling [4]. However, the major drawback of IPT is ferromagnetic interference which is the flux cannot pass through the magnetisable material.

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Design And Development Of Capacitive Power Transfer System.

Design And Development Of Capacitive Power Transfer System.

A traditional approach of wireless power transfer, the IPT is commonly used. The main drawback of IPT is a very high common mode source impedance to overcome high power factor of current topology that may cause eddy current losses and difficult to penetrate the metal. A priority project is to study how to design a capacitive power transfer system with lower power factor. This involves the low power transmission at the interface capacitance and lead to the low power applications. All weaknesses of IPT can be improved and enhanced using the CPT system.
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Self-Frequency Tracking High-Frequency Class E Resonant Inductive Links For Wireless Power Transfer Application.

Self-Frequency Tracking High-Frequency Class E Resonant Inductive Links For Wireless Power Transfer Application.

All electronic devices such as implantable devices, mobile phones, among others, need a power supply to activate them. To make it more portable, flexible and convenient in order to charge the battery, a WPT system is more preferable compared to a wired charger. For example, the use of a smart phone causes fast discharging due to the use of many applications. Consequently, a wired power bank needs to be plugged in to charge the smartphone’s battery. In order to eliminate the hassle of a wired connection, a WPT system based on a loosely coupled IPT system was proposed. This is because other WPT systems, like Capacitive Power Transfer (CPT) systems and Acoustic Energy Transfer (AET) systems have their own limitations. A CPT system can only obtain low output power at the smallest air gap. Meanwhile, an AET system is very sensitive to the variation of operating frequency propagation. Therefore, an IPT system was chosen in this research, mainly because of its higher output power transfer and produces better efficiency. In an IPT system, a loosely coupled system is a non-contact power transfer with a small gap between the primary and secondary side that is suitable to be used for moving objects, especially for charging systems. Therefore, a contactless power transfer solution, i.e., loosely coupled IPT system for power delivery or battery charging without direct electrical contact is preferred for these mobile devices.
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Development Of Wireless Power Transfer (WPT) Technology For Mini Aquarium Using Capacitive Power Transfer (CPT) Approach.

Development Of Wireless Power Transfer (WPT) Technology For Mini Aquarium Using Capacitive Power Transfer (CPT) Approach.

Therefore, the classification of WPT is divided into two categories that are near-field power transfer and far-field power transfer. In near-field power transfer, the inductive power transfer (IPT) is the favourite power transfer type used for real world applications compared to capacitive power transfer (CPT) and acoustic power transfer (APT). Last year, IKEA has released a new product that is a small table that able to charge electronics gadgets by placing the item at a certain spot and has introduced the WPT technology to the consumers in worldwide and eliminate cable [2]. Besides IPT, CPT and APT, microwave power transfer (MPT) and light power transfer (LPT) are under the far-field power transfer category respectively [3]. For this project, WPT is applied in the aquarium; using near field technique with CPT approach for WPT is chosen. This is because CPT is capable to transmit through metal objects unlike IPT and has higher efficiency than APT. Therefore, application of WPT in water for instance, aquarium is interesting topic to be done because multiple devices are usually used in the aquarium so the fishes can live comfortably although there are some obstacles need to overcome to achieve perfect result.
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The Development Of Inductive Power Transfer (IPT) System For Biomedical Implantable Units.

The Development Of Inductive Power Transfer (IPT) System For Biomedical Implantable Units.

There are various types of WPTs such as the capacitive power transfer (CPT) and inductive power transfer (IPT).The CPT only can be applied to the low power range. The amount of coupling capacitance of CPT depends on the available area of devices. This situation is not practical in some applications or by targeting the low power applications [3]. For IPT system, this system is capable to transfer higher power compared to CPT system at the medium or large air gap. The potential of electric shock for IPT is low due to no exposed conductors. Other than that, the IPT is waterproof since the charging connections are fully enclosed and thus, make it suitable for harsh environments in general [4].
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The Development Of Wireless Power Transfer Technologies For Multiple Devices Using Inductive Approach.

The Development Of Wireless Power Transfer Technologies For Multiple Devices Using Inductive Approach.

Pemindahan kuasa tanpa wayar (WPT) adalah penghantaran tenaga elektrik melalui sesuatu benda tanpa menggunakan sebarang konduktor elektrik atau wayar. Terdapat tiga teknik pemindahan tenaga tanpa wayar dalam kategori medan dekat adalah pemindahan kuasa berdasarkan induktif (IPT), pemindahan kausa berdasarkan kapasitif (CPT) dan pemindahan kuasa berdasarkan akustik (APT). Antara ketiga- tiga teknik pemindahan tenaga tanpa wayar, IPT mempunyai kelebihan dalam jarak penghantaran yang jauh dan kecekapan yang tinggi berbanding dengan CPT dan APT. Oleh itu, projek ini bertujuan untuk menggunakan IPT sebagai teknik untuk memindahkan kuasa secara tanpa wayar. Dengan teknik IPT, kuasa akan menghantar daripada satu gegelung pemancar kepada beberapa gegelung penerima. Oleh itu, peralatan elektronik seperti jam digital dan lampu meja akan dapat kuasa tanpa menggunakan kabel atau bateri. Untuk menjadi tertentu, inverter kelas E direka dalam kejar ini untuk menukar sumber arus terus (DC) kepada sumber arus pada frekuensi yang tinggi dengan kecekapan yang tinggi. Analisis prototaip yang dibangunkan disiap dan dibincang dari segi kecekapan serta cadangan untuk masa depan juga dibentagkan. Pada akhir projek ini, prototaip ini mampu menghasilkan 75% daripada kecekapan.
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Design And Development Of Wireless Power Transfer For Implant Biomedical Device (PTIBD).

Design And Development Of Wireless Power Transfer For Implant Biomedical Device (PTIBD).

5 force supply (battery) and solidified substitute parts. The pacemaker unit is typically introduced in the pectoral zone (Sandro A. P. Haddad, 2009). In year 1958, a thoracic master at Karonlinska Hospital in Stockholm do embedded myocardial terminals and heartbeat generator with a rechargeable nickel-cadmium on 40 year old patient but the beat generator is fizzled inside of a few hours and function back on around 6 weeks.

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Design And Development Of An RF Power Harvester Operating In Subthreshold For Body Area Networks.

Design And Development Of An RF Power Harvester Operating In Subthreshold For Body Area Networks.

The important terms such as BAN, RF harvesting system, rectifier, operating region of Metal Oxide Semiconductor Field Effect Transistor (MOSFET) transistor and design consideration of high-quality rectifier have been described. Section 2.7 presents the RF rectifier topologies based on MOSFET which are Fully Gate Cross Coupler (FGCC) rectifier, Self Vth Cancellation (SVC) rectifier and Dynamic Threshold- voltage MOSFET (DTMOS) rectifier. Their specifications, advantages, disadvantages, circuit design and operation have been reviewed. Charge transfer switches in Integrated Circuit (IC) domain have been studied in Section 2.8. It includes Schottky diode, diode-connected diode and Ultra-Low Power (ULP) diode.
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Design A Dualband Rectifying Circuit For RF Power Transfer.

Design A Dualband Rectifying Circuit For RF Power Transfer.

RF energy harvesting is a process that converts a suitable DC power from an unlimited source such an ambient RF energy. The main element of the RF energy harvesting system is shown in Figure 1.1. Matching circuit consist of the conductive and inductive element to ensure the maximum input power delivery from the antenna to rectifier [2]. A good matching circuit depends on its capability to deliver maximum input power to the rectifying circuit. The challenges task to design dual band rectifier is to match the rectifier with a two frequency band and at the same time minimize the sensitivity of rectifier [3]. Rectenna are the combination of rectifier and antenna that was initially designed by W. C. Brown for converting the microwave power into direct current DC power [4], [5]. Rectenna is the key block of the front end receiving a portion of a wireless powering system. The rectifier will give a smooth DC power by transform RF energy that captured by antenna [1].
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DEVELOPMENT OF DYNAMIC EVOLUTION CONTROL FOR PV INVERTER IN SOLAR POWER PLANT APPLICATION

DEVELOPMENT OF DYNAMIC EVOLUTION CONTROL FOR PV INVERTER IN SOLAR POWER PLANT APPLICATION

Power inverter is a kind of power electronic converter that used to convert a dc input voltage to an ac output voltage. In solar power plant application, the PV inverter converts the dc voltage from Solar PV panel, which is usually stored in the battery, into an ac output voltage to serve the load of household appliances, such as lighting, television, mobile charger, even a washing machine and water pump. Therefore, a reliable inverter that can produce a good output voltage is necessary.The main purpose of this paper is to design and develop a dynamic evolution control (DEC) for a PV Inverter in solar power plant application. The analysis and design of the DEC control technique are provided. The performance of the PV inverter controller is verified through MATLAB Simulink. To validate the simulation results, an experimental prototype of PV inverter is developed. The controller of the PV inverter system was implemented based on dynamic evolution control. The performance of the proposed dynamic evolution control is tested through simulation and experiment.
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Design and construction of wireless power transfer system using magnetic resonant coupling

Design and construction of wireless power transfer system using magnetic resonant coupling

The most common wireless power transfer technologies are the electromagnetic induction and the microwave power transfer. For efficient midrange power transfer, the wireless power transfer system must satisfy three conditions: (a) high efficiency, (b) large air gap, (c) high power. The microwave power transfer has a low efficiency. For near field power transfer this method may be inefficient, since it involves radiation of electromagnetic waves. Wireless power transfer canbe done via electric field coupling, but electric field coupling provides an inductively loaded electrical dipole that
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Low wireless power transfer using Inductive Coupling for mobile phone charger

Low wireless power transfer using Inductive Coupling for mobile phone charger

In recent years, there has been increasing interest in research and development of wireless power technology to eliminate the “last cable” after Wi -Fi becomes widely accepted [1]. Imagine sitting down for a cup of coffee, and placing your mobile phone on the table. The phone lights up, and starts to automatically charge without connectors or cables. You could simply grab your mobile phone on your way out in the morning, and charge it wherever you needed to at home, the office, the library, the local coffee shop. It would be even better if you did not ever need a charger. We could simply forget about USB cables, chargers and, when traveling, adapters. Inductive power transfer is being used in numerous applications for transferring power wirelessly. Inductively coupled chargers are being used for wireless charging of mobile phones, MP3 Player and other handheld devices as proposed in [2-4].
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Development Of Multiple Wireless Power Transfer.

Development Of Multiple Wireless Power Transfer.

A major part of this paper is to refers previous data from others publication on efficiency limits and cites from a further one, but new aspects about resonance operation and magnetic emissions are also added up that have been discovered by E.Waffenschmidt . In a further part of this work, an inductive power transmission pad is applied, which is it need to charge devices like mobile phones. Finally, the Wireless Power Consortium is discovered, which is it’s recently released the first industry standard for inductive charging of mobile devices called “Qi”, and have been reviewed in this paper. Figure 2.3 shows the input current (for a fixed voltage) at the part of transmitter coil shows a typical inductive power system, where the receiver comprises a series resonant capacitor.
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Design And Development of Current Mode AC DC Switching Power Supply.

Design And Development of Current Mode AC DC Switching Power Supply.

AC/DC current-mode switching power supply that implementing in flyback converter is widely used in off line power supplies for modern office equipments such as laptops, printers, and etc, this due to its high power density and high efficiency as well as cost effectiveness, compactness, and light weight [1]. The main use of these power systems is to regulate output voltage and current according to the loads specifications.

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TOSHIBA global internship program 2017

TOSHIBA global internship program 2017

Power systems are indispensable for contemporary lifestyles, and demand for expected to remain vigorous worldwide. Leveraging expertise cultivated since the company's foundation, Toshiba Group is contributing to the creation of infrastructure that enriches quality of life for people throughout the world. In order to ensure stable supply of electricity, we offer hydro, solar, geothermal and wind power generation facilities in the renewables space, as well as thermal and nuclear power generation systems.
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POWER HOUSE DESIGN OF LOAD CONTROLLING SYSTEM FOR DC POWER HOUSE

POWER HOUSE DESIGN OF LOAD CONTROLLING SYSTEM FOR DC POWER HOUSE

on the accumulator battery is 112,736305 Watt-hour, while the power supplied by the accumulator battery for one day is 216,63835 Watt-hour in sunny conditions throughout the day. The system works according to the capacity of the battery at that time. With the DC Power House is the problem of local electricity can be resolved.

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