` PORTABLE MOBILE CHARGER USING PIEZOELECTRIC ENERGY DEEPAK SAHADEVAN NAIR PRADEEP KARUNAMBARAN SUBMITTED ON: 07/JUNE/2013 CIRCUIT DESIGN PROJECT REPORT 7514ENG PRACTICAL ELECTRONICS Griffith University‚ Brisbane‚ Qld‚ Australia EXECUTIVE SUMMARY Alternative energy sources are one of the main focuses in research and development in many aspects in engineering‚ especially electronic devices. By targeting renewable energy sources‚ not only will the amount of pollution decrease but also
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both in SPICE and physical implementation. The results need to be reported from both the SPICE and physical measurements. 1 Current voltage characteristics of diodes 1. Design a circuit to measure the forward-bias current voltage characteristics of diode as shown in Fig 3 using Circuitlab. Figure 1: A SPICE circuit for plotting current voltage characteristics of diodes. 2. Obtain the characteristics of D1N4148 by SPICE simulation. 3.1. Simulate the power diode using
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Signal amplification circuit The ultrasonic signal which was received with the reception sensor is amplified by 1000 times(60dB) of voltage with the operational amplifier with two stages. It is 100 times at the first stage (40dB) and 10 times (20dB) at the next stage. As for the dB (decibel)‚ refer to "Logarithm Table". Generally‚ the positive and the negative power supply are used for the operational amplifier. The circuit this time works with the single power supply of +9 V. Therefore‚ for the
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Identify the type of the following circuits as either serial or parallel. 2. List four characteristics of a series circuit. 1) The total current is the same everywhere in the circuit. 2) A series circuit only has one path for current to flow. 3) The sum of all the voltages sources is equal to the sum of all the voltage drops. 4) The total resistance in the circuit is equal to the sum of the individual resistances. 3. Calculate the total resistance in the circuit below. Show the formula used.
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to erase white board automatically. So I took the initiative to create a new product‚ which can overcome some difficulties faced by this group. Our latest creation called "Whiteboard Cleaner". In this report contained all the information about circuits and operating the project as well as the equipment used during this project. OBJECTIVES OF THE PROJECT My main objective of this project is to fulfill the duty to award the certification requirements in Electronic Engineering. Among other objectives
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socket outlets (SSO). Each circuit to serve not more than 50 m2 of floor area. Additional SSO to be provided at specific location for known appliance e.g. kitchen‚ living and family areas‚ Not more than 3 nos. of SSO connected to a 20A circuit serving kitchen area‚ One number of multi-split air-conditioner unit ( assume 3 kW‚ pf=0.85) provided with isolator point (20A) located at the Yard area‚ Water heater (instantaneous type) 2 kW located in bathroom‚ Each lighting circuit should not be connected
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THERMAL DETECTORS INSTRUMENTATION AND CONTROL ENGINEERING MODULE 1 INTRODUCTION • Temperature – Is a measure of the kinetic energy of the material in question • Kinetic energy is a measure of the activity of the atoms of any material – The measure of the speed of an atom or molecules which they move. – expressed in terms of any of several arbitrary scales‚ such as Fahrenheit‚ Celsius‚ or Kelvin Measuring Device • Thermal Detectors – An instrument or device which quantifies temperature
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Procedure for creating a PCB: OrCAD Capture: First to create a PCB circuit‚ we start by opening OrCAD Capture ("File"‚ "New" and click on "Design" or "Project. Afterwards‚ we click the "Place Part" submenu and we add the important and necessary libraries. If necessary we place the parts and make correct connections (it is done by typing the name of the part we want in "Part" and choosing "Part Search" so that we can click on "Begin Search" and choose any library files that are necessary
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Voltage: Ohm ’s Law and Kirchhoff ’s Rules ABSTRACT Ohm ’s Law and Kirchhoff ’s rules is fundamental for the understanding of dc circuit. This experiment proves and show how these rules can be applied to so simple dc circuits. INTRODUCTION In the theory of Ohm ’s Law‚ voltage is simply proportional to current as illustrated in the proportionality‚ V=RI. As shown in this relation‚ V represent voltage which is the potential difference across the two ends of a electrical conductor and between
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assignment is to design a pre amplifier circuit with an NPN transistor to be used in a simple public address (PA) system. The pre amplifier is fed from a microphone that produces an average output voltage of 10 mV rms. The amplifier is to operate over a frequency range of 300 Hz to 5 kHz and should have an adjustable volume control. The expected gain of the amplifier is 100. First we are going to design an amplifier for given specifications‚ model the operation of the circuit using h-parameter and r-parameter
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