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elektronica --- halfgeleider --- diode --- mosfet --- operationele versterker --- oscillator --- (zie ook: diode) --- opamp
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Electronics --- elektronica --- Circuits transistorises --- Electrotechnique --- Elektrotechniek --- MOSFET transistoren --- Metal oxide semiconductor field-effect transistors --- Transistor circuits --- Transistors MOSFET --- Transistorschakelingen --- Vermogenselektronica --- 621.382 --- #KVIV:BB --- 621.316.52 --- MOS metal oxyde semiconductors --- MOSFET metal oxyde semiconductor field effect transistor --- elektrotechniek --- regeltechniek --- vermogenelektronica --- vermogens Mosfet --- 621.3.049.7 --- 621.3.06 --- 621.38 --- Componenten --- MOSFET's --- Schakelingen --- Electronic devices using solid-state effects. Semiconductor devices --- Transistoren --- Transistoren. --- 621.382 Electronic devices using solid-state effects. Semiconductor devices --- Electrotechniekers
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This book presents the art of advanced MOSFET modeling for integrated circuit simulation and design. It provides the essential mathematical and physical analyses of all the electrical, mechanical and thermal effects in MOS transistors relevant to the operation of integrated circuits. Particular emphasis is placed on how the BSIM model evolved into the first ever industry standard SPICE MOSFET model for circuit simulation and CMOS technology development. The discussion covers the theory and methodology of how a MOSFET model, or semiconductor device models in general, can be implemented to be ro
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CE+T Power is a Belgian company and a leading producer of modular inverters and modular UPS. Founded in 1934, CE+T Power has been specializing in power electronics since the 1960's and they invented the modular inverter in the end of the 1980’s. They provide power solutions to enterprises to secure their critical applications against power failures. Therefore, CE+T is always progressing in the field of power electronics by offering the best modular inverters. A DC/DC converter is a building block of an inverter. So, a high-performance DC/DC converter is necessary for their products. The main objective of this work is two-fold. The first objective is to study a DC/DC converter topology known as Multi Resonant Interleaved Boost Converter and to evaluate its performance and behaviour. The second objective is to utilize the knowledge gained and implement it to optimize a prototype of DC/DC converter called as `CE+T E-Once 350VA DC/DC Converter'. First the `CE+T E-Once 350VA DC/DC Converter' is tested and its various characteristics such as ripple current, ZCS behaviour of active switches, voltage gain and stability are evaluated. Then the potential improvements are identified. To achieve the improvements, a list of required hardware and software changes is established. The modifications are introduced in the circuit, one at a time and various tests are carried out to validate the modifications introduced. Once, all the necessary changes are done, the new version of the converter is called `Optimized Multi Resonant Interleaved Boost Converter'. In comparison to the `CE+T E-Once 350VA DC/DC Converter', the `Optimized Multi Resonant Interleaved Boost Converter' has lower input ripple current, lower voltage stress across the MOSFET switches, lower current peaks in the MOSFET's drain current and lower energy circulating in the resonant tank; all of which led to reduced losses and better efficiency. This project consisted of theoretical research as well as hands-on experience with DC/DC converters. Various concepts such as zero-current switching and resonant converters were studied and implemented in practical.
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Power converters are widely used over the world and are implemented in several electronic applications. This thesis was realised in partnership with CE+T POWER, one of the leaders on the power management market. The principal goal of this project was to revise their current DC/DC converter implemented inside one of their main products, the ``Sierra 10". To do so, the idea of replacing MOSFET by new GaN transistors was investigated. First, the converter operations were studied and successfully checked on LTspice simulations. The wide bandgap semiconductors technology was summarised and it was shown that there were several advantages of using GaN instead of silicon transistors. GaN transistors are easy to use, allow new capabilities, are reliable, and will be at least as cost-effective as the silicon within few years. Then, it was shown that the transistors of the converter were controllable by sensing the magnetising current. In practice, the drain current of the primary transistor is almost an image of the magnetising current (without considering the resonance part of the drain current). The drain current would be sensed. It was possible to fix the needed output power to compute the corresponding peak magnetising current values and switching frequency to impose. At first glance, there were several operating points for a given output power. However, it was shown, under assumptions, that an operating point which induces the lowest power losses inside the primary transistor existed. This could be translated into a simple optimisation problem. The mathematical programming results corresponded to the analytical results. The model suggested to decrease the switching frequency around 30 kHz for a peak magnetising current of 81 A. This operating point might not be the most practical one in terms of transformer sizing and cost. Supplementary manufacturing constraints could be added to the model to shift the minimum losses operating point. The obtained results showed that a possible minimum losses operating point exists and could be tracked under a simple model of losses computation that could be sharpened in function of the technical constraints.
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In this book, Complementary Metal Oxide Semiconductor ( CMOS ) devices are extensively discussed. The topics encompass the technology advancement in the fabrication process of metal oxide semiconductor field effect transistors or MOSFETs (which are the fundamental building blocks of CMOS devices) and the applications of transistors in the present and future eras. The book is intended to provide information on the latest technology development of CMOS to researchers, physicists, as well as engineers working in the field of semiconductor transistor manufacturing and design.
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The world-wide proliferation of cellular networks has revolutionizedtelecommunication systems. The transition from Analog to Digital RFtechnology enabled substantial increase in voice traffic usingavailable spectrum, and subsequently the delivery of digitally basedtext messaging, graphics and even streaming video.
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This volume provides a timely description of the latest compact MOS transistor models for circuit simulation. The first generation BSIM3 and BSIM4 models that have dominated circuit simulation in the last decade are no longer capable of characterizing all the important features of modern sub-100nm MOS transistors. This book discusses the second generation MOS transistor models that are now in urgent demand and being brought into the initial phase of manufacturing applications. It considers how the models are to include the complete drift-diffusion theory using the surface potential variable in the MOS transistor channel in order to give one characterization equation.
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