Differential amplifiers A differential (or difference) amplifier is a circuit used for amplifying a voltage difference between two input signals while rejecting signals that are common to both inputs. IRE = based on approximation IC ≈ IE then IC1 = IC2 = IRE/2 therefore‚ VC1 = VC2 = VCC – IC1R1 Modes of Signal Operation: Single-ended input – input signal is applied to either input with the other input connected to ground Differential or double-ended input – two opposite polarity input signals are
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Robotics Society of Japan 2005. Full paper Virtual impedance adjustment in unconstrained motion for an exoskeletal robot assisting the lower limb SUWOONG LEE ∗ and YOSHIYUKI SANKAI Graduate School of Systems and Information Engineering‚ University of Tsukuba‚ 1-1-1 Tennodai‚ Tsukuba‚ Ibaraki 305-8573‚ Japan Received 11 May 2004; accepted 12 August 2004 Abstract—The objective of this paper is to establish the criteria for adjusting the virtual impedance of an exoskeletal robot for the lower limb in order
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EG1108: Electrical Engineering Part 2: Application Examples Ben M. Chen Professor of Electrical and Computer Engineering National University of Singapore Office: E4‐06‐08 Phone: 6516‐2289 Email: bmchen@nus.edu.sg ~ http://www.bmchen.net EG1108 PART 2 ~ PAGE 1 BEN M. CHEN‚ NUS ECE Course Outline 1. Introduction to Electrical Engineering Introduction to some practical electrical engineering examples. 2. Magnetic Circuits and Transformers Principles of mutual inductance and
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Multiband Bandpass Filter using Multimode Resonator Bachelor of Engineering (Electrical and Electronic Engineering) Project Supervisor: Sie King Ting Student: Mohammad Faizan Suleman (4215400) DECLARATION I hereby declare that this report entitled “Multiband Bandpass Filter using Multimode Resonator” is the outcome of my own project work apart from quotations and citations which have been properly acknowledged. I also state that earlier it has not been or concurrently submitted for
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ULTRASOUND PHYSICS Name Institution a) Calculate the Acoustic impedance of subcutaneous tissue‚ muscle and bone. Assume subcutaneous tissue has a density of 1060kg/m3 (Hedrick 2003)‚ muscle has a density of 1104kg/m3 (Madjor 2008) and bone has a density of 5065kg/m3 (Hedrick 2003). Give your answer in Mrayls. Please use speed of sound as 1540m/s for tissue‚ muscle and bone In ultrasound‚ Acoustic impedance (Z) is the quantity of measurement of resistance to sound when passing through a medium
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Electromagnetic waves in space See the book “Optics” by Hecht sections 3.2 and 3.3 Speed of light: EM waves travel in a vacuum with speed c = c = 299‚792‚458 ms-1 exactly They are transverse waves with (vector) E and B field orthogonal to each other‚ for this section bold indicates vector quanties. When far from the source (many wavelengths) the E and B fields are in phase The vector E x B points in the direction of motion Travelling waves can be written as E = E 0 ⋅ ei ( kx −ωt ) and B = B 0 ⋅ ei
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Abstract: In this paper‚ we present the concept of transmitting power without using wires i.e.‚ transmitting power as microwaves from one place to another is in order to reduce the transmission and distribution losses. This concept is known as Microwave Power transmission (MPT). This paper is mainly concentrated on : i) The most popular concept known as Tesla Theory‚ ii) The microwave power transmission(MPT) called Solar power satellite‚ and iii) The highly efficient fiber lasers for wireless power
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PROJECT IN T.L.E Electronic Components Diodes a diode is a two-terminal electronic component with asymmetric conductance‚ it has low (ideally zero) resistance to current flow in one direction‚ and high (ideally infinite) resistance in the other. A semiconductor diode‚ the most common type today‚ is a crystalline piece of semiconductor material with a p–n junction connected to two electrical terminals. A vacuum tube diode has two electrodes‚ a plate (anode)
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class into another class. This achieved by taking the instance of the class to be converted and uses the methods the adoptee has available to create methods which are expected. It wraps the existing class with a new interface. It allows for impedance by matching an old component to a new system. This becomes particular useful when for instance a company purchases an off the shelf product and wishes to adopt it into their current system. The disadvantages of this method arises when trying to implement
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Unit7 Assignment 1 #1 transmission lines are specialized cables and other media designed to carry alternating current and electromagnetic waves of high frequency (radio frequency or higher)‚ high enough that its wave nature must be taken into account. #3 Solid dielectric cable has become the national standard for underground electric transmission lines less than 200 kV. There is less maintenance with the solid cable‚ but impending insulation failures are much more difficult to monitor and detect
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