CONTENTS CONTENTS + 0 ) 2 6 - 4 Learning Objectives ➣ P-N Junction Diode ➣ Derivation of Junction Resistance ➣ Junction Breakdown ➣ Junction Capacitance ➣ Equivalent Circuit of P-N Junction ➣ Diode Fabrication # P-N JUNCTION DIODE ➣ Grown Junction ➣ Alloy Junction ➣ Diffused Junction ➣ Epitaxial Junction ➣ Point Contact Junction ➣ The Ideal Diode ➣ The Real Diode ➣ Diode Circuits with D.C. and A.C. Voltage Sources ➣ Diode Clipper and Clamper Circuits ➣ Clippers
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1.INTRODUCTION Most high-precision machines are positioning stages with Multiple degrees of freedom(DOF)‚ which often consist of cascaded long-and short-stroke linear actuators that are supported by mechanical or air bearings. Usually‚ the long stroke actuator has micrometer accuracy‚ while the Submicron accuracy is achieved by the short-stroke actuator. To build a high-precision machine‚ as much disturbances as possible should be eliminated. Common sources of disturbances are vibrations
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Even in a down market‚ weak sales are seen as no excuse for not coming up with better products to whet the appetites of customers who will eventually need to upgrade their computing and electronic devices. Traditionally‚ semiconductor companies controlled the entire production process‚ from design to manufacture. Yet many chip makers are now delegating more and more production to others in the industry. Foundry companies‚ whose sole business is manufacturing‚ have recently come to the fore‚ providing
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Abstract: Phase absence is a very common and severe problem in any industry‚ home or office. Many times one or two phases may not be live in three phase supply. Because of this‚ many times‚ some electrical appliances will be on in one room and OFF in another room. This creates a big disturbance to our routine work. This project is designed to check the availability of any live phase‚ and the load will be connected to the particular live phase only. Even a single phase is available‚ and then also
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that have so far prevented commercial exploitation of the circuit are discussed. The remaining technical challenges are defined and the work in progress to meet these challenges is highlighted. 1. INTRODUCTION The matrix converter offers an all silicon solution for AC-AC power conversion. The circuit consists o an array of hi-directional switches arranged so that any of the output lines of the f converter can be connected to any of the input lines. Figure 1 shows a typical three-phase to threephase
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WIRELESS ACCIDENT INTIMATING SYSTEM USING RF The main aim of this project is to implement a system to identify accident by using wireless communication technology RF. The purpose of the project is to get information about the crashing of particular vehicle which passing through a remote area‚ and using sensor and transmitting a message to the concerned receiver section by using RF communication. In present days Electronic communication takes an important role. In this project we are sending
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Wireless Charger for Low Power Devices Chapter 1 1.1 Introduction We live in a world of technological advancement. New technologies emerge each and every day to make our life simpler. Despite all these‚ we still rely on the classical and conventional wire system to charge our everyday use low power devices such as mobile phones‚ digital camera etc. and even mid power devices such as laptops. The conventional wire system creates a mess when
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Simulation of 1 – φ half wave uncontrolled rectifier with R‚ RL and RLE load. Aim of the Experiment: To simulate 1 – φ half wave uncontrolled rectifier with a) R load b) RL load c) RLE load. And plot input voltage waveform‚ output current waveform‚ output voltage waveform and voltage across the diode. Software Required: (a) Windows Xp or above (b) Matlab 7.0 or above (c) Simulink 2.0 or above Theory: This is the simplest type of uncontrolled rectifier. It is never used in industrial applications
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Chaitanya Bharathi P.O.‚ Gandipet‚ Hyderabad-500 075 2010 1 ABSTRACT The railway gate is to be controlled so that the road traffic is to be predicted .The railway gate is to be closed when a train is passing by the way. The opening and closing of the gate is to be done using stepper motors and this stepper motor is controlled by micro controller. The signaling of the train is also controlled depending upon the gate position. Only when gate is closed the green signal is otherwise red signal.
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and lower than the AC/DC converter that controlled by the conventional proportional-integral controller. Index Terms—AC/DC converter‚ converter‚ digital control‚ digital signal processing chip‚ power factor correction I. INTRODUCTION From the harmonic problem in utility system‚ the limit current of each harmonic order of load current has been defined in an international standard harmonics regulation. Electronic equipment which consists of a rectifier circuit is an example of the equipment
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