Power electronics Mid-1 Objective exam 2011 1.When UJT is used for triggering an SCR‚ the wave shape of the voltage obtained from UJT firing circuit is a a) Sine wave (b) saw tooth wave (c)trapezoidal wave (d) Square wave 2. In a thyristor circuit‚ the angle of conduction can be changed by changing (a) anode Voltage (b) Anode Current (c) Forward Current rating (d)gate Current 3. Freewheeling diodes are mainly used for (a) Better utilization factor (b) di/dt protection
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Chapter 17 Financial Forecasting and Planning 17-1. We are to estimate the total financing needed (total assets) and net funding requirements (discretionary financing needed) for the next year (2011) for Zapatera Enterprises. We’ll start with total assets. We’re told that the firm’s 2011 sales will be $15M‚ and that the proportion of sales represented by operating expenses‚ current assets‚ net fixed assets‚ and current liabilities will be the same as for 2010. Thus‚ we can create Zapatera’s pro
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Chapter 15 E-Commerce Strategy and Global EC Learning Objectives Upon completion of this chapter‚ you will be able to: 1. Describe the strategic planning process. 2. Understand how e-commerce impacts the strategic planning process. 3. Understand how EC applications are formulated‚ justified‚ and prioritized. 4. Describe strategy implementation and assessment‚ including the use of metrics. 5. Understand the causes of EC failures and lessons for success. 6. Evaluate the issues
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BASIC DIODE ELECTRONICS INTRODUCTION TO DIODES The p-n Junction The p-n junction is a homojunction between a p-type and an n-type semiconductor. It acts as a diode‚ which can serve in electronics as a rectifier‚ logic gate‚ voltage regulator (Zener diode)‚ switching or tuner (varactor diode); and in optoelectronics as a light-emitting diode (LED)‚ laser diode‚ photodetector‚ or solar cell. In a relatively simplified view of semiconductor materials‚ we can envision a semiconductor as having two
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In 1965‚ Dr. Gordon Moore working as the Director of R&D for Fairchild Semiconductor published a paper titled “Cramming more components onto integrated circuits”. In his paper‚ he discusses the future of electronics and how these “integrated circuits will lead to such wonders as home computers—or at least terminals connected to a central computer—automatic controls for automobiles‚ and personal portable communications equipment”. He also discusses how the rate in which the number of transistors
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Augat Electronics Inc. - A Case Analysis 1. Critical Issues Canadian market for Cable TV connectors is expected to grow substantially in the coming years. Given the current product quality and the maturity in Value Added Services provided by the Cable TV companies‚ the basis for purchasing decisions seems to be changing. Given the current market share that Augat has and situation‚ it will be of at most importance to penetrate one or more of the multiple service operators (MSOs) that dominate the
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one’s favorite music or watch favorite television shows. The role of media and technology in education is quite obvious in today’s educational settings. Some students use a laptop to help them with their academic studies. Media is such a massive part of one’s life and it is everywhere. Media influence on children has already increased indeed more sophisticated types of media has been developed and made available to the public. Beneficial effects include early readiness for learning‚ educational
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GM 545 Business Economics Professor: William Mason Project Part II February 1‚ 2012Gutierrez Chapter 15‚ Question 11 A) The graph given to us depicts the GDP of five decades and indicates how consumption (consumers)‚ government spending‚ gross private domestic investment‚ and net exports have contributed to the economy for the past 50 years. We look at the percentage calculation of each component of GDP. We realize that Government spending is the most stable and after that comes Gross private
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TRANSACTIONS ON ELECTRICAL AND ELECTRONIC MATERIALS Vol. 11‚ No. 3‚ pp. 93-105‚ June 25‚ 2010 Invited Paper pISSN: 1229-7607 eISSN: 2092-7592 DOI: 10.4313/TEEM.2010.11.3.093 Challenges for Nanoscale MOSFETs and Emerging Nanoelectronics Yong-Bin Kim Department of Electrical and Computer Engineering‚ Northeastern University‚ Boston‚ MA 02115‚ USA Received April 26‚ 2010; Accepted May 3‚ 2010 Complementary metal-oxide-semiconductor (CMOS) technology scaling has been a main key for continuous progress
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slacking grip of the government and the introduction of satellite channels have helped towards promoting the free media environment in the country. History of media in India Media industry of the country is very diverse in nature. Both the print and electronic media enjoy great penetration in India. With improved infrastructure and affordability of computers the on-line media too is catching up fast. Hence‚ India presents great scope for E&M industry development. However‚ the development of media
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