Electric Motors and Drives This Page Intentionally Left Blank Electric Motors and Drives Fundamentals‚ Types and Applications Third edition Austin Hughes Senior Fellow‚ School of Electronic and Electrical Engineering‚ University of Leeds AMSTERDAM • BOSTON • HEIDELBERG • LONDON • NEW YORK • OXFORD PARIS • SAN DIEGO • SAN FRANCISCO • SINGAPORE • SYDNEY • TOKYO Newnes is an imprint of Elsevier Newnes is an imprint of Elsevier Linacre House‚ Jordan Hill‚ Oxford OX2 8DP 30 Corporate
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Chapter one Introducing Mechatronics Objectives The objectives of this chapter are that‚ after studying it‚ the reader should be able to: Explain what is meant by mechatronics and appreciate its relevance in engineering design. Explain what is meant by a system and define the elements of measurement systems. Describe the various forms and elements of open-loop and closed-loop control systems. Recognise the need for models of systems in order to predict their behaviour. ● ● ● ● 1.1 What is mechatronics
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use of transistor for designing logic gates. Further down in the course we will use the same transistors to design other blocks (such as flip-flops or memories) Ideally‚ a transistor behaves like a switch. For NMOS transistors‚ if the input is a 1 the switch is on‚ otherwise it is off. On the other hand‚ for the PMOS‚ if the input is 0 the transistor is on‚ otherwise the transistor is off. Here is a graphical representation of these facts: When a circuit contains both NMOS and PMOS transistors we say
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skeleton and ligaments interact to enable movement including antagonistic muscle pairs‚ extensors and flexors. Cartilage: a tissue made from collagen‚ which protects bone ends A muscle: an organ that produces movement by contraction A joint: the junction between two bones A tendon: joins muscle to bone A ligament: joins bone to bone to stabilise a joint Muscles work in pairs. One muscle produces the opposite movement from the other muscle‚ therefore‚ the pairs are called antagonistic pairs. Muscles
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B. OLSON ECE 407 Homework 1 Transistor sizing For this homework unless told otherwise refer to the AMI .5um process handout. Assume that VTP = -.94V and VTN = .79V. Assume that all transistors are biased in saturation. Determine the W/L ratio needed to bias an NMOS transistor with 50uA of current with Vdsat = .2V. Determine Vg if Vs = 0. [pic] Determine the W/L ratio needed to bias a PMOS transistor with 50uA of current with Vdsat = .2V. Determine Vg if
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Near Field Communication(NFC): The Future Mobile Money Service ABSTRACT : In this paper‚ we explore new ways in which Near Field Communication (NFC) can be used on smart phones. NFC allows for contextual application invocation (CAI)— the execution of code on the phone as a result of our environment . We can launch applications because of contextual information we learn from another transaction on our phone‚ or we can associate context with a virtual token to recall at a later time. We can also pass
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networks‚ while higher frequency filters (above 100kHz) are usually made from RLC (Resistor-Inductor-Capacitor) components. Passive filters are made up of passive components such as resistors‚ capacitors and inductors and have no amplifying elements (transistors‚ op-amps‚ etc) so have no signal gain‚ therefore their output level is always less than the input. Filters are so named according to the frequency range of signals that they allow to pass through them‚ while blocking or "attenuating" the rest.
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Electronic waste From Wikipedia‚ the free encyclopedia For the EC directive‚ see Waste Electrical and Electronic Equipment Directive. Defective and obsolete electronic equipment. Electronic waste‚ e-waste‚ e-scrap‚ or waste electrical and electronic equipment (WEEE) describes discarded electrical or electronic devices. There is a lack of consensus as to whether the term should apply to resale‚ reuse‚ and refurbishing industries‚ or only to product that cannot be used for its intended purpose
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did not possess the advanced skills needed to install such equipment. A patient’s heartbeat depended solely on these units to survive; however‚ a malfunction from such unit would cause a patient to die. Although the liability of a malfunctioned transistor is on the manufacturer‚ justifying the manufacturer’s acts of deception would be utilitarianism because of its moral reasoning. In this paper‚ I shall discuss the general utilitarian issues of the case. In addition‚ I will apply the different
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Practice Exam #4 – Chapters 12‚ 13‚ 14 & 15 1) What would normally be found within the central canal of the spinal cord? a) Blood b) Myelin c) Cerebrospinal fluid d) Air e) Gray matter 2) The filum terminale is a) The roots of spinal nerves hanging inferiorly from the end of the spinal cord in the vertebral column b) An indentation on the dorsal side of the spinal cored c) The tapered end of the spinal cord d) An extension of the pia mater that anchors the spinal cord to the coccyx
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