i De La Salle Lipa College of Information Technology and Engineering Electronics Engineering Department PC – Based Lighting and Fan System Gesmundo‚ Kaycee Kimberly S. Marquez‚ Mark Aries J. Mea‚ Kit Arvin C. Perez‚ Omar Mikhail I. Tirones‚ Jefferson A. Umali‚ Max Oliver M. T4A March 2012 Engr. Robert G. De Luna Instructor i Table of Contents page I. Introduction 1 II. Physical Description 2 III. System Operation 3 IV. System Specification
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Title: Table of Contents/Revisions Size B Date: Document Number SCH-27325 PDF: SPF-27325 Monday‚ December 19‚ 2011 Sheet 1 Rev B of 6 1 5 4 3 2 1 CHANGE NOTES: Rev. X2 Added TSI button 5V/3.3V selector via zero ohm resistor Replaced original J1 & J2 connectors with TWR-S08UNIV connectors Added sheet 4 to show TWR-S08UNIV connectors Removed J1 & J2 and switched supplier of U5 to reduce cost REV X4 Renamed VDD from J3 to VDD_U‚ Removed VDDA from pin 8 of J3 and connected
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EXPOSITORY ESSAY FOR THE HOUSE By: McClain Baxley A circuit is a closed loop that electrons can travel in. A source of electricity‚ such as a battery‚ provides electrical energy in the circuit. Unless the circuit is complete‚ that is‚ making a full circle back to the electrical source‚ no electrons will move. There are three essential parts to a true circuit. These include electrical devices. An electrical device is a device that resists the flow of energy. Another electrical device that a successful
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Resistance is measured in ohms. It can be calculated from the potential difference across a component and the current flowing through it. The total resistance of a series circuit is the sum of the resistances of the components in the circuit. Resistors‚ filament lamps and diodes produce different
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measure the current I through the resistor and the pad. Measure for 5 – 10 min. Make a table and a graph. Apparatus Data collection Our first investigation was to measure the resistance of the immersion heater using a multimeter. The resistance was measured to: R = 0‚73 Ω After‚ we had to determine the power P of the immersion heater by using water heating. The method was explained in the experiment procedure. First we measured the current I through the resistor using an ammeter and a voltmeter
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Physics of a Light Bulb Catherine Bellet Lab Partners: Natalie Russell Alex Harris TA: Chad Lunceford PHY 114 TH @ 2:25pm Abstract: Ohm’s law states‚ via the equation V=I*R‚ that the voltage found across a piece of material is proportional to the current. If the temperature remains constant therefore the resistance is found to remain constant. Stefan-Boltzmann law states that when the temperature if above an average of 1000K‚ then the relationship of voltage and current should be found
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LINEAR POSITION MEASUREMENT USING A MAGNETORESISTIVE SENSOR Abstract: A smart transducer used to measure the linear displacement of an object in a magnetic field is presented. The application is to be safely used for demonstration purposes in the Playpen laboratory. The system uses an array of five HMC1501 Magnetoresistive (MR) sensors to sense the position of a magnet attached to the moving object. The system also has the ability to monitor the ambient operating temperature and detect if it is
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this investigation‚ I will need the following apparatus: · Power pack · Variable resistor · Ammeter · Voltmeter · 6 wires of different diameters I will set up a circuit as in the diagram: By running a constant voltage through the wire‚ I will be able discover the resistance of it with Ohms law‚ because of the constant voltage‚ and the fact I will know the resistance of the circuit using the variable resistor. I will maintain a constant‚ low voltage output from the power pack‚ so the voltage
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photodiode D1 and R3 – a fixed resistor. As the laser beam receives a distraction from a foreign agent‚ the voltage on comparator pin drops to 2 below that at pin 3‚ thereby enabling the agent swing to positive voltage supply and enable an alarm situation. As the laser alarm can detect any foreign agents‚ so is the alarm can be set in a more sophisticated fashion‚ where it can bypass accidental interrupts from agents‚ like an insect. This is accomplished as the Resistor R2 provides a level of hysteresis
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will majestically jump up. The Vc1 is the driving signal for this 555‚ connected at PIN 6‚ which is the THRESHOLD PIN. As soon as Vc1 reaches ⅔Vcc‚ then the output at PIN 3 goes low‚ and the capacitor starts discharging‚ via PIN 7 with Rb as the Resistor and ground as the other terminal. (Refer to the first image to see how it MIGHT happen.) When it reaches ⅓Vcc‚ the output at PIN 3 goes high‚ and the DISCHARGE PIN’s connection with ground is broken. The capacitor again starts charging‚ and the cycle
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