ELEC4614 Power Electronics School of Electrical Engineering & Telecommunications University of New South Wales ELEC4614 - Power Electronics Solution of Tutorial 1 - Basic Concepts in Power Electronics Question 1. (a) Vd VT 300 I T Rds 200 A This neglects the on-state voltage drop of the R 1.5 switch. This is only acceptable when the on-state voltage is small compared to the DC supply voltage Vd (= 300V in this case). t During turn-on time‚ vT (t ) Vd 1 ; again neglecting
Premium 2007 1965 1984
Chapter 2 Basics of Vibration Dynamics Vibrations are mechanical oscillations about an equilibrium position. There are cases when vibrations are desirable‚ such as in certain types of machine tools or production lines. Most of the time‚ however‚ the vibration of mechanical systems is undesirable as it wastes energy‚ reduces efficiency and may be harmful or even dangerous. For example‚ passenger ride comfort in aircraft or automobiles is greatly affected by the vibrations caused by outside
Premium
This would translate to Pilla dedicating most of their resources towards ensuring the manufacturing of the Keurig brewers meet high quality standards. I believe the key to future success for Keurig is differentiating their product; promoting the concept that no other coffee is as fresh. This is essential as other companies begin to tap into this market. For example‚ Starbucks has an agreement with Green Mountain Coffee Roasters to sell their coffee in the K-cups; however Starbucks has also recently
Premium Keurig Coffee
BASIC WORKOUTS INSTRUCTIONS 1. Determine your 1 Set Max and create a personalized workout - see “Customize Your Workout” below 2. Review the Checklist before each workout for proper form and breathing 3. Follow the schedule to Get Ripped! The Pullup Perfected Traditional pullups can be intimidating. That’s why we created the Perfect Pullup. With its unique adjustable Swing Arm‚ now anyone can do a pullup and benefit from the great upper body and core exercise. The Perfect Pullup adjusts
Premium Exercise Physical exercise
The Basics of NMR Chapter 1 INTRODUCTION [pic] NMR Spectroscopy Units Review [pic] NMR Nuclear magnetic resonance‚ or NMR as it is abbreviated by scientists‚ is a phenomenon which occurs when the nuclei of certain atoms are immersed in a static magnetic field and exposed to a second oscillating magnetic field. Some nuclei experience this phenomenon‚ and others do not‚ dependent upon whether they possess a property called spin. You will learn about spin
Premium Nuclear magnetic resonance
Vector graphics is the use of geometrical primitives such as points‚ lines‚ curves‚ and shapes or polygon(s)‚ which are all based on mathematical expressions‚ to represent images in computer graphics. "Vector"‚ in this context‚ implies more than a straight line. Vector graphics are based on images made up of vectors (also called paths‚ or strokes) which lead through locations called control points. Each of these points has a definite position on the x and y axes of the work plan. Each point‚ as
Premium Computer graphics Pixel
Have you ever wondered why is there so much "empty space" in space if there are no other intelligent beings we can communicate with? If this would be true‚ the whole universe would be a complete waste since humans will never be able to explore not one percent of it. Also‚ there is so much evidence about aliens‚ so many sightings and encounters that it is very hard to disprove them all. If the theory of evolution is taken into consideration‚ the possibilities of intelligent life forming only on Earth
Premium NASA Human Earth
and your clicks and sends them to the computer so it can respond appropriately. An ordinary mouse detects motion in the X and Y plane and acts as a two dimensional controller. It is not well suited for people to use in a 3D graphics environment. Space Mouse is a professional 3D controller specifically designed for manipulating objects in a 3D environment. It permits the simultaneous control of all six degrees of freedom - translation rotation or a combination. . The device serves as an intuitive
Premium Personal computer Mouse
Assessing Personality Fill in the following boxes by identifying and describing three types of personality assessment. List a specific assessment‚ or the procedure for measuring this type of personality measure. Describe whether or not you think this is an effective method for measuring personality. Be sure to answer the question below the box. Save this document and type directly onto the document and into the boxes. The boxes will expand to accommodate what you write. Submit as an attachment
Premium Psychology
BASICS OF TELECOM TELECOM VERTICALS:- 1. IMPLEMENTATION OF TELECOM SYSTEM & TRANSMISSION SYSTEMS i) BTS(BASE TRANSEIVER SYATEM) ii) ALARM SYSTEM iii) BSC(BASE STATION CONTROLLER) iv) ANTENNA v) VARIOUS CARDS 2. POWER SYSTEM INSTALLATION i) DG(DIESEL GENERATOR) ii) MCB iii) PIU(POWER INTERPHASE UNIT) iv) SMPS v) RECTIFIERS vi) BATTERY BANK(24VOLT‚48VOLT) vii) POWER CARDS 3. OPERATION & MAINTAINANCE FOR TELECOM & INFRA SYSTEMS 4. RF VERTICALS i) RF SURVEY ii) RF PLANNING iii) NETWORK
Premium Geodesy Cardinal direction Number