controlled converter. Calculate the average and RMS value of the output dc voltage. Calculate the displacement factor‚ distortion factor and power factor of the input ac line current. Calculate the Fourier series components of the output voltage and input current waveforms. Derive the closed form expression for output dc current and hence identify continuous or discontinuous conduction mode of the converter. Version 2 EE IIT‚ Kharagpur 3 14.1 Introduction Three phase fully controlled converters
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1. A 25 ohm resistor has an average power of 400 watts. Determine the maximum value of the current if it is a (a) sinusoidal‚ (b) triangular. 2. Determine the effective value Vrms of the voltage function given by v(t) = 100+25 sin 3wt + 10 sin 5wt volts. 3. What average power results in a 25 ohm resistor when it passes a current i(t) = 2+3 sin wt +2 sin2wt + 1 sin 3wt amperes. 4. Calculate Irms if i(t) = 50 + 40 sin wt amperes. 5. Calculate Irms if i(t) = 150 + 50 sin wt +
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Though Thomas Edison is most well know for inventing the lightbulb‚ he has many other contributions to the engineering society that often go unnoticed. He has been deemed by many as one of the most influential people of all time and is considered to have had a large impact on modern civilization. Edison had a large breadth of experience working with motors‚ generators‚ and light bulbs. He fine-tuned and improved the DC generator/motor and expanded the popularity of both the DC and AC motors
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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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a scientist named Micheal Faraday discovered a way to conduct an electrical current through a wire. This discovery was called the basic principles of electrical generation. Thomas Edison also did several experiments that later led to the invention of the Light Bulb in 1879. He made it possible for people to use the artificial light by 1880. His invention made Micheal Faraday’s discovery of conducting electrical currents through a wire into an electrical force inside a pear-shaped glass bulb. This
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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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Student Number:R001251K Course CR 10066 Research Project DECLARATION I of the following student number declare that this circuit is researched and constructed by me Signature........................................................... INTRODUCTION An electronic muscle stimulator is a circuit designed to stimulate nerves
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OR result in human error‚ it is important to follow these precautions to ensure patient and operating staff safety. The electrosurgical unit (ESU) generated current that is used to cut or coagulate tissue‚ including fat‚ fascia‚ muscle‚ internal organs‚ and vessels. Current flows from a generator to a device that delivers electric current to the surgical site through the patient or tissue and is channeled back to the generator via the dispersive (inactive) electrode‚ known as the patient grounding
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INTRODUCTION Electricity is one of the basic needs of every individual especially in this “digital” era wherein technology has taken place. It is important in houses‚ streets‚ mini-stores up to big companies. With it‚ we enjoy lighting for our home‚ and heat and cooling to keep ourselves comfortable‚ and access to the countless appliances that make our lives better. By powering television and computers‚ it keeps us in touch with the outside world‚ and by powering alarms and security systems‚ it
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As the temperature rise of the heater is converted into a voltage by means of the Seebeck effect which is also temperature-dependent‚ the mean output voltage will therefore differ when dc and low-frequency ac inputs are applied‚ thus leading to an ac–dc transfer difference. 3.2 MULTIFUNCTION CALIBRATOR The Fluke Model 5700A/5720A Series II calibrators are precise instruments that calibrate a wide variety of electrical measuring instruments. These calibrators maintain high accuracy over a wide ambient
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