Lab4 - 1. OBJECTIVES The objective of this experiment was...

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Unformatted text preview: 1. OBJECTIVES The objective of this experiment was to find the Thevenin equivalencies for three separate circuits. The circuits and their VTH, ISC, and RTH were analyzed using PSPICE, hand calculations, and DMM use on breadboard reproductions. 2. BACKGROUND INFORMATION PSPICE PSPICE stands for Personal Simulation Program with Integrated Circuit Emphasis. This program is used to simulate analog and digital circuits on a computer [1]. Series Circuits A circuit whose elements are arranged so that current does not divide are said to be in series. A series circuit can be reduced because a uniform current will exhibit useful characteristics, such as the ability to combine elements sharing the same, unsplit current. Joshua Dean ECE 11-34 Lab Report Experiment 4 Keithley Model 175 Digital Multimeter (DMM) This device is used to measure the the current, resistance, and voltage values associated with various elements in a circuit. Banana to mini grabber test leads are necessary and must be attached before use Parallel Components When two elements within a circuit are connected in such a way that they will have the same voltage across them, they are said to be in parallel. The current through these elements will split due design of the circuit. A useful application of parallel circuits is to apply the uniform voltage principle to an element in parallel with an interface. Therefore, the interface can be said to exhibit the same potential voltage difference as the parallel element, and thereby will have that potential voltage difference applied across any connected element to the interface. Agilent E3631A Triple Output DC Power Supply This device is used as a DC Power supply. This device also required the use of banana to mini grabber test leads. Once connected and adjusted to the desired setting this device will power a circuit. Background Equations Joshua Dean ECE 11-34 Lab Report Experiment 4 Equation 2.1 Percentage Error (PE) Equation, Nominal Value (NV), Measured Value (MV) Equation 2.2 Ohms Law Equation Equation 2.3 Power Equation 2.4 Voltage division Equation 2.5 - Thevenin Resistance Equation 2.6 Series Equivalent Resistance Joshua Dean ECE 11-34 Lab Report Experiment 4 Equation 2.7 Parallel Equivalent Reisitance 3. MATERIALS Keithley Model 175 Digital Multimeter (DMM) Banana to mini-grabber test leads Bread Board Agilent E3631A Triple Output DC Power Supply Wire and Wire Clippers Resistors o 750 (FOUR) o 1.0k o 1.0k Potentiometer o 1.5k o 3.0k 4. EXPERIMENTAL PROCEDURES 4.1 PROBLEM # 3 Joshua Dean ECE 11-34 Lab Report Experiment 4 1. A Data Table was constructed to record data from the following experiment. A Data Table was constructed to record data from the following experiment....
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Lab4 - 1. OBJECTIVES The objective of this experiment was...

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