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Published byJeffery Ellis Modified over 8 years ago
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Week 9 Day 1
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Units to be measured and calculated VoltageVoltsV or E ResistanceOhmsR or Ω Current AmpsI or A PowerWattW or P
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Work more than 2 weeks past due date may receive zero.
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REDUCE AND RETURN APPROACH
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Chapter 10 DC NETWORK ANALYSIS 10.1 What is network analysis?............................. 329 10.2 Branch current method............................... 332 10.3 Mesh current method................................ 341 10.3.1 Mesh Current, conventional method...................341 10.3.2 Mesh current by inspection.......................... 354 10.4 Node voltage method................................ 357 10.5 Introduction to network theorems...................... 361 10.6 Millman’s Theorem.................................. 361 10.7 Superposition Theorem..........................364 10.8 Thevenin’s Theorem............................ 369 10.9 Norton’s Theorem................................... 373 10.10Thevenin-Norton equivalencies........................ 377 10.11Millman’s Theorem revisited...........................379 10.12Maximum Power Transfer Theorem............... 381 10.13_-Y and Y-_ conversions.............................. 383
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Superposition Theorem
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Pages 364-369
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Page 368
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Experiment / Lab9 Series – Parallel DON’T Do table 9.6 DON’T Do page 120 Not doing: Experiment / Lab 10
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Experiment / Lab 11 Superposition Take careful note of power supply polarity DON’T short actual power supplies DON’T do pages 134 - 139
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10.8 Thevenin’s Theorem Thevenin’s Theorem is useful in analyzing power systems and other circuits where one particular resistor called the “load” is subject to change. Textbook page 369
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10.8 Thevenin’s Theorem Thevenin’s Theorem states that it is possible to simplify any linear circuit, to an equivalent circuit with just a single voltage source and series resistance connected to a load. Textbook page 369 Textbook uses 2 power sources we will use 1.
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Thévenin’s theorem states: Any two-terminal dc network can be replaced by an equivalent circuit consisting solely of a voltage source and a series resistor.
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Preliminary: Remove that portion of the network where the Thévenin equivalent circuit is found. Mark the terminals of the remaining two-terminal network.
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E TH E Thevenin : Calculate E Th by finding the voltage between the marked terminals.
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R TH R Thevenin : Calculate R Th by first setting all voltage sources to zero (voltage sources are replaced by short circuits) and then finding the resultant resistance between the two marked terminals.
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Conclusion: 5. Draw the Thévenin equivalent circuit with the portion of the circuit previously removed replaced between the terminals of the equivalent circuit. This step is indicated by the placement of the resistor R L between the terminals of the Thévenin equivalent circuit.
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1 Resistance and 1 Voltage
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Lab Test
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Week 9 Lab 12 Thevenins Theorem and Maximum power Transfer. Don’t do page 153, 154
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