BJT AC Analysis The re Transistor model 1 of 38 Remind Q-poiint re = 26mv/IE BJT AC Analysis Three amplifier configurations‚ Common Emitter Common Collector (Emitter Follower) Common Base 2 of 38 BJT AC Analysis 3 of 38 Process Replace transistor with small-signal model. Replace capacitors with short-circuits (at midband frequency caps have relatively low impedance) Replace DC voltage sources with short-circuits. Replace DC current sources with open-circuits). BJT AC Analysis
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Power Electronic Project DC/AC Conversion using an H-Bridge Supervisor: Dr. Lutfi Al-Sharif Students: Samer Alshaer 201010997 Ayman Herzalla 200910124 Ala al shargabi 201020177 Abstract—In this document a DC (Direct Current) to AC (Alternating Current) conversion method using an H-Bridge will be introduced; components‚ simulation and hardware implementation will be presented. Index Terms— H-Bridge‚ DC to AC conversion‚ Power electronic application‚ Simulation. I. INTRODUCTION A
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AC/DC was formed in December‚ 1973‚ in Australia‚ by guitarist Malcolm Young‚ whom had just left his last band‚ Velvet Underground. He saw first hand all the benefits that came with being a rock star‚ as his older brother‚ George Young‚ reach the big time as a member of the popular 1960s band‚ the Easybeats. He very much wanted to follow in George’s footsteps. Malcolm also could see that his younger brother‚ Angus‚ was a very talented guitar player‚ even if he was only 15 years old‚ and picked him
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EXPERIMENTS IN ELECTRICAL A.C. MACHINES Prof. Engr. Abdul Hameed Prof. Engr. Rana Riaz Ahmad Faculty of Engineering * University of the Central Punjab (Incorporated by Ordinance No. XXIV of 2002 promulgated by Government of the Punjab) INTRODUCTION This manual covers all necessary experiments at the graduate engineering level and is aimed to demystify the students from abstract concepts. The manual is enriched with clear circuits‚ specifications‚ procedures‚ observations
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AC Circuits. Oscilloscope Arjun Patel Group: 2 Partner: Hirbod B. Partner: Wonyoung J. PHY 114 Section 87725 TA: Hank Lamm November 3rd 2011 Abstract: The main goal of this experiment to Investigate the sine wave AC signal from signal generator using the scope and determine the relationships between the rms value and the amplitude of the voltage as well as the period and the frequency of the signal. The following are the results of the lab: T= 10-3seconds‚ Vo=1.4V ‚ 2% discrepancy
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Chapter 4 DC to AC Conversion (INVERTER) • General concept • Basic principles/concepts • Single-phase inverter – Square wave – Notching – PWM • Harmonics • Modulation • Three-phase inverter DC to AC Converter (Inverter) • DEFINITION: Converts DC to AC power by switching the DC input voltage (or current) in a pre-determined sequence so as to generate AC voltage (or current) output. • TYPICAL APPLICATIONS: – Un-interruptible power supply (UPS)‚ Industrial (induction motor) drives‚ Traction
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CIRCUITS LABORATORY EXPERIMENT 3 AC Circuit Analysis 3.1 Introduction The steady-state behavior of circuits energized by sinusoidal sources is an important area of study for several reasons. First‚ the generation‚ transmission‚ distribution‚ and consumption of electric energy occur under essentially sinusoidal steady-state conditions. Second‚ an understanding of sinusoidal behavior makes possible the prediction of circuit behavior when nonsinusoidal sources are used through the use of techniques
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Indigenization of English in South Asia/Pakistan Rescuing Culture? Outline • • • • Questions Linguistic Levels of Indigenization How is it happening? What will be the future? Can we drive English away? • A. R. Haque: – “It may not be possible to alter the position of the English language in the national set-up radically‚ or to reduce its role” (1993‚ p. 17). • A. Mahboob: – “No English‚ no future: Language policy in Pakistan” (2002) So what about cultural loss? • A. P. Saleemi: – If so‚ what
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Kirchhoff’s Law Kirchhoff’s current law (KCL) imposes constraints on the currents in the branches that are attached to each node of a circuit. In simplest terms‚ KCL states that the sum of the currents that are entering a given node must equal the sum of the currents that are leaving the node. Thus‚ the set of currents in branches attached to a given node can be partitioned into two groups whose orientation is away from (into) the node. The two groups must contain the same net current. In general
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Week Three Weekly Reflection ACC/291 PRINCIPLES OF ACCOUNTING II Weekly Reflection Week Three There are many topics that are covered in week three and with the Christmas and New Year’s break the team would find it beneficial to cover all the topics. These topics include: Chapter 11 1. Identify the major characteristics of a corporation. 2. Record the issuance of common stock. 3. Explain the accounting for treasury stock. 4. Differentiate preferred stock from common stock. 5. Prepare
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