Physics EEI Contents Introduction 4 Astable Multivibrators 4 Overview of the 555 Timer 5 Integrated Circuit 5 Semiconductor material 7 Current and Resistance 9 Potentiometer 10 Calculation of the Voltages 11 Transistors 11 Light Emitting Diode (LED) 14 Capacitance 14 555 Timer Operations 15 Operation in the Astable State 17 Aim, Hypothesis, and Calculations 18 Aim 18 Hypothesis 19 Materials 20 Method 20
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Physics EEI Contents Introduction 4 Astable Multivibrators 4 Overview of the 555 Timer 5 Integrated Circuit 5 Semiconductor material 7 Current and Resistance 9 Potentiometer 10 Calculation of the Voltages 11 Transistors 11 Light Emitting Diode (LED) 14 Capacitance 14 555 Timer Operations 15 Operation in the Astable State 17 Aim, Hypothesis, and Calculations 18 Aim 18 Hypothesis 19 Materials 20 Method 20
Words: 8917 - Pages: 36
power supply” (Brown, 2001, p.11). they are often used in ground based equipments and distributed power system. Linear regulated power supply function is to convert varying Alternative Current input to regulated Direct Current output. The typical circuit use in this type has tow range. One allow more voltage at low current and the other allow more current at low voltage. Linear regulated power supplies come in tow basic
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system of DC motors, L298 motor driver and microcontroller technology are used in the controller. For the design analysis of motor driving system, PIC16F887 is used and it was implemented by using Pulse Width Modulation (PWM) technique. The driving circuit for the robot is designed and it should be synchronized such that the locomotion of both wheels is executed simultaneously. The entire operation can be made closed loop with the help of feedback circuitry using incremental encoder. Keywords: DC
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Electrical services design Institution Student name Introduction The need for electricity has been ever increasing. As well, the numbers of critical or sensitive loads have also increased. Today, the electricity transmission and distribution is greatly affected by this ever growing need. On the other hand, the consumer's demand has also been in a rising manner. These problems can be catered for by the use of energy storage devices, renewable energy and use of distributed generation. Micro-grid
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LDRs and Thermistors LDRs are light dependent resistors that are often used in circuits where it is necessary to detect the presence or the level of light. A light dependent resistor is a component that is sensitive to light; therefore when light falls upon it the resistance changes. The value of resistance of the LDR is subject to change over many orders of magnitude when the value of the resistance falls as the level of light increases. It is fairly simple to understand the basics of how an
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How to Build a PC: Part 1 Abstract 5 STEPS TO FOLLOW IF SOMEONE IS THE VICTIM OF ELECTRICAL SHOCK 1. DO NOT GRAB OR PULL INDIVIDUAL 2. TURN OFF ELECTRICAL POWER, ONLY IF POSSIBLE AND IF IT WILL NOT BE HARMFUL TO YOURSELF 3. IF YOU CANNOT TURN OF POWER, PUSH OR PULL INDIVIDUAL WITH WOODEN STICK 4. CALL FOR HELP IMMEDIATELY 5. AFTER INDIVIDUAL IS FREE OF CONTACT, MOVE IMMEDIATELY AND BEGIN LIFE
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INTRODUCTION HISTORY OF OCCUPATION/PROFESSION Electrical and Electronics Engineering deals with the behavior of electrons as they pass through gases, liquids, solids, and vacuums. Originally this field was an outgrowth of electrical engineering, an area concerned with the movement of electrons along conductors. As the field of electronics has expanded in scope, however, so has its definition, and today the term encompasses all areas of technology concerned with the behavior of electrons in electronic
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electricians will only need a high school diploma or the equivalent, although some will choose to attend a technical school. They will learn their trade through a 4 year apprenticeship. This is on the job training. During each year of training, electrical apprentices will complete 144 hours of classroom instruction and 2000 hands on, on the job training. If one were to attend a technical school that would be applied toward their apprenticeship. Starting pay for an
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Case Study - Machine Controls for portable decontamination & sterilization system Description: Electrical Control Panel, Control System Design & Engineering and Machine Controls for a portable room and vehicle sterilization system. Industry: * Medical equipment * Biohazard remediation * Healthcare facilities * Fire & Emergency medical services * Law enforcement & corrections * Public transportation * Food processing plants * Hotels * Gym and
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