TABLE OF CONTENTS 1. P-N JUNCTION DIODE CHARACTERISTICS 1 2. ZENER DIODE CHARACTERISTICS 6 3. TRANSISTOR COMMON -BASE CONFIGURATION 11 4. TRANSISTOR CE CHARACTERSTICS 16 6. FULL-WAVE RECTIFIER 26 7. FET CHARACTERISTICS 31 8. h-PARAMETERS OF CE CONFIGURATION 36 9. TRANSISTOR CE AMPLIFIER 43 10. COMMON COLLECTOR AMPLIFIER 48 11. RC COUPLED AMPLIFIER 53 12. COMMON SOURCE FET AMPLIFIER 58 13. WEIN BRIDGE OSCILLATOR 63 14. RC PHASE SHIFT OSCILLATOR 66 15. CURRENT-SERIES
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EE3501E – Power Electronics Lecture 2 Text Power Electronics ‐ A First Course Author: Ned Mohan ‐ / 2012 John Wiley and Sons 1 Lecture 1 ‐ Review • • • • • • What is Power Electronics? Applications of power electronics. Linear vs Switched power conversion. Switching‐power pole Inductors and capacitors‐basic properties. Pulse‐Width‐Modulation (PWM) 2 Linear vs Switch mode conversion 3 Switching Power‐Pole + Vin q A qA 1 vv A + vA - A Vin 0 0 t
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INVISIBLE BROKEN WIRE DETECTOR 1 1. INTRODUCTION In our day to day life we are dealing with electricity as well as so many electrical equipments. In this electrical equipment the household appliances play a major role. So the fault occurring with them is also a major problem. Generally the fault seen is the breaking of wire inside the two layer or three layer cables or the short circuit between them. Portable loads such as video cameras‚ halogen flood lights‚ electrical irons‚ hand drill
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Electronics‚ Electron Devices and ICs Electrons and holes in semiconductors‚ Carrier Statistics‚ Mechanics of current flow in a semi-conductor‚ Hall effect; Junction theory; Different types of diodes and their characteristics; Bipolar Junction transistor; Field effect transistors; Power switching devices like SCRs‚ CTOs‚ power MOSFETs; Basics of ICs-bipolar‚ MOS and CMOS types; Basics of Opto Electronics. 3. Network Theory Network analysis techniques: Network theorem‚ transient and steady state sinusoidal
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The thermistor‚ temperature detector‚ is a special type of resistor whose resistance varies significantly with the temperature. As the temperature of the soil rises‚ the thermal device changes its internal resistance‚ saturating the bipolar junction transistors‚ permitting the current to flow‚ triggering the relay‚ and thereby‚ activating the solenoid valve.
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“PROPOSED DESIGN OF A SMALL SIGNAL AUDIO AMPLIFIER” A Project Development Study Presented to the Faculty of the College of Engineering‚ Architecture and Fine Arts BATANGAS STATE UNIVERSITY Gov. Pablo Borbon Main Campus II Alangilan‚ Batangas City In Partial Fulfillment Of the Requirements for the Degree BACHELOR OF SCIENCE Major in Electronics Engineering By: Dimaculangan‚ Buena Amor L. March‚ 2014 APPROVAL SHEET This project study entitled‚ “PROPOSED
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How an SCR works?-Principle of Operation SCR Working Principle The SCR is a four-layer‚ three-junction and a three-terminal device and is shown in fig.a. The end P-region is the anode‚ the end N-region is the cathode and the inner P-region is the gate. The anode to cathode is connected in series with the load circuit. Essentially the device is a switch. Ideally it remains off (voltage blocking state)‚ or appears to have an infinite impedance until both the anode and gate terminals have suitable
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increased leakage current exponentially‚ thus the MOS devices will no longer be totally turned-off anymore. The power dissipation caused by leakage current can’t be neglected anymore‚ which attracts extensive attentions. Based on the fact that PMOS transistors have an order of magnitude smaller gate leakage than NMOS ones‚ it is used for designing circuit for reducing gate leakage power. Series of iterative steps are carried out to find the design perspective effect in different technologies. Keywords—
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Module 5 Amplifiers Power Amplifiers Introduction to Power Amplifiers What you’ll learn in Module 5. Section 5.0 Introduction to Power Amplifiers. Understand the Operation of Power Amplifiers. Section 5.1 Power Transistors & Heat Sinks. • Power Transistor Construction. • Power De-rating & High Power Operation. • Thermal Resistance of Heat Sinks. • Thermal Runaway. Section 5.2 Class A Power Amplifiers. •The limitations due to the efficiency of class A power amplifiers. •Transformer
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buck converter. [pic] [pic] Fig. 4: Evolution of the voltages and currents with time in an ideal buck converter operating in continuous mode. The operation of the buck converter is fairly simple‚ with an inductor and two switches (usually a transistor and a diode) that control the inductor converter. In the idealised converter‚ all the components are considered to be perfect. Specifically‚ the switch and the diode have zero voltage drop when on and zero current flow when off and the inductor
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