Get all the support needed for apprentices to complete the Level 3 Electrotechnical qualification that forms a key part of their apprenticeship. Developed in partnership with JTL, the leading training provider in the Electrotechnical industry, Apprenticeship Electrotechnical (Installation or Maintenance) Level 3 Handbook A is designed to support both the City & Guilds and EAL Level 3 Electrotechnical qualifications. Written by expert JTL trainers, this book works together with Apprenticeship Electrotechnical (Installation or Maintenance) Level 3 Handbook B to give apprentices all the support and knowledge they need to complete the Level 3 qualification so they can be confident they have the best support for their apprenticeship.

This book is a complete guide to the IET Wiring Regulations and the important changes in Amendment 3 to BS 7671:2008. It provides comprehensive guidance on all aspects of electrical installation design, including the Electricity Safety Quality and Continuity Regulations. Derivations of the requirements are included along with the relevant formulas, data, installation design calculations, and examples. The Commentary also includes guidance on related subjects, such as the prevention of electromagnetic interference, allowance for harmonic currents and the use of cable armouring.

Master's Thesis from the year 2014 in the subject Electrotechnology, grade: Master degree, Hohai University (College of Energy and Electrical Engineering), course: Power Electronics, language: English, comment: This study employs a buck ZCS (PWM) converter and develops a novel soft-switching approach for charger batteries. This thesis presents technique for battery charger to achieve efficient performance in charging shaping, minimum low switching losses and reduction in circuit volume. The operation of circuit charger is switched with the operation of zero-current-switching, resonant components and appends the topology of dc-dc buck. The proposed novel dc-dc battery charger has advantages with the simplicity, low cost, high efficiency., abstract: This study employs a buck ZCS (PWM) converter and develops a novel soft-switching approach for charger batteries. This thesis presents technique for battery charger to achieve efficient performance in charging shaping, minimum low switching losses and reduction in circuit volume. The operation of circuit charger is switched with the operation of zero-current-switching, resonant components and appends the topology of dc-dc buck. The proposed novel dc-dc battery charger has advantages with the simplicity, low cost, high efficiency and the behavior of easy control under the ZCS condition accordingly reducing the switching losses. The detailed study of operating principle and circuit design consideration is performed. A short survey of battery charging system, capacity demand & its topological is also presented. In order to compute LC resonant pair values in conventional converter, the method of characteristic curve is used and electric function equations are derived from the prototype configuration. The efficient performance of charging shaping is confirmed through the practical examines and verification of the results is revealed by the MATLAB simulation. The efficiency is ensured about 89% which is substantially considere

Master's Thesis from the year 2012 in the subject Electrotechnology, grade: 9.36, West Bengal University of Technology, course: M.TECH IN ADVANCE COMMUNICATION, language: English, comment: this research was performed during my M.Tech project. Further research is going on and i hope to reach to my goal regarding this topic., abstract: Advanced developments that were made recently in the field of Silicon (Si) semiconductor technology have allowed it to approach the theoretical limits of the Si material. However there are latest power device requirements for many applications that cannot be handled by the present Si-based power devices. These requirements include such as higher blocking voltages, switching frequencies, efficiency, and reliability. And hence, new semiconductor materials for power device applications are needed to overcome these limitations. For high power requirements, wide bandgap semiconductors like Silicon Carbide (SiC) and Gallium Nitride (GaN) and Gallium Arsenide (GaAs), which are having superior electrical properties, are likely to replace Si in the near future. This Study thesis compares the electrical characteristics of wide-bandgap semiconductors with respect to Silicon (Si) to verify their superior utility for power applications and predicts the future of power device semiconductor materials. This thesis also includes the study that has been performed regarding the electrical characteristics of high frequency semiconductor devices in terms of I-V characteristics and Noise Power Spectral Density (PSD) Analysis with respect to drain current fluctuation in the semiconductor devices. The semiconductor devices that are used for this particular thesis are - Metal Effect Semiconductor Field Effect Transistors (MESFETs) and High Electron Mobility Transistors (HEMTs).

Master's Thesis from the year 2013 in the subject Electrotechnology, grade: 1,0, University of Applied Sciences Regensburg (Fakultat Elektro- und Informationstechnik), language: English, comment: Masterarbeit im Studiengang "Master Applied Research in Engineering Sciences," abstract: Virtualization has come a long way since its beginnings in the 1960s. Nowadays, Virtual Machine Monitor (VMM)- or hypervisor-based virtualization of servers is the de facto standard in data centers. In recent years, virtualization has also been adopted to embedded devices such as avionics systems and mobile phones. The first mass deployment of embedded virtualization can probably be seen in video game consoles, though. However, the functionalities and possibilities provided by embedded virtualization today for the most part still are where they were when virtualization was in its infancy in the mainframe era. Moreover, it is still not employed by automotive electronics at all thus far. This thesis presents advancements achieved in hardware virtualization since then as well as their possible merits for embedded virtualization. The emphasis hereby lies on increases in reliability of the resulting embedded systems. Additionally, the focus is on automotive Electronic Control Units (ECUs) and especially the upcoming automotive domain controller architecture. This work is divided into five parts: The first one constitutes an introduction to the problem domain and highlights benefits of virtualizing embedded devices - in particular Domain Controller Units (DCUs), i. e. "server" variants of ECUs - beyond the mere partitioning into time and space. In the second part, an overview of virtualization technology centered around its basic principles is given. Against this background, complications of virtualizing Input/Output (I/O) operations with current hardware architectures and the adaption of their processors to virtualization are elaborated on. Moreover, the most prominent implications for se

Diploma Thesis from the year 2012 in the subject Electrotechnology, grade: 2.0 bzw."B," The Slovak Technical University (Faculty of electrical engineering and information technology), language: English, comment: Design a signal detection device for detection and digitization of weak signals with frequencies up to 25 Hz before their transmission into a personal computer (PC). The device should contain an input low-pass filter with a cutoff frequency of 25 Hz, a preamplifier, microcontroller MSP430F2013 for digitization and preparation of the digitized signals for transmission into the PC via USB interface., abstract: Design a signal detection device for detection and digitization of weak signals with frequencies up to 25 Hz before their transmission into a personal computer (PC). The device should contain an input low-pass filter with a cutoff frequency of 25 Hz, a preamplifier, microcontroller MSP430F2013 for digitization and preparation of the digitized signals for transmission into the PC via USB interface.

A wireless sensor network is comprised of a large number of inexpensive battery-powered, self-organising sensor nodes. The sensor nodes can communicate among themselves and send their data through the network to a main location or sink where the data can be observed and analysed. Wireless sensor networks enable new applications and have gained a lot of attention in the last decade, as they have a great impact on real-life activities and hold true to the promise of delivering a smart communication paradigm. These networks are often deployed in hostile or inaccessible areas to collect environmental data for analysis and decision making. Due to the deployment cost, wireless sensor networks are usually planned to run for a long time once they are deployed. The book highlights power efficient design issues related to wireless sensor networks as well as the existing WSN applications. The research efforts being undertaken in this field which help the students and researchers to grasp the materials, enabling them to understand more advanced research and make a contribution in this field for themselves is also discussed. All the chapters of this book are written by several of the leading researchers. It is believed that this book will serve as a comprehensive reference for graduate and undergraduate students who seek to learn the latest advancements in wireless sensor networks.