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Methods of Analysis

Methods of Analysis. EE 2010: Fundamentals of Electric Circuits Mujahed AlDhaifallah. Source Characteristics. Current. Voltage. Voltage. Current. Source Characteristics. Voltage Source. Current Source. Current. Voltage. Voltage. Current. Current Source.

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Methods of Analysis

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  1. Methods of Analysis EE 2010: Fundamentals of Electric Circuits Mujahed AlDhaifallah

  2. Source Characteristics Current Voltage Voltage Current

  3. Source Characteristics Voltage Source Current Source Current Voltage Voltage Current

  4. Current Source • A current source determines the current in the branch in which it is located. • The magnitude and the polarity of the voltage across it depend on the complete network.

  5. Ideal Sources

  6. Practical Sources

  7. Source Conversion • Source conversions are equivalent only at the external terminals

  8. Source Conversion

  9. Question on Source Conversion!

  10. Current Sources in Parallel

  11. Current Sources in Parallel

  12. Current Sources in Series? • No way.

  13. The two Approaches already learnt! • Reduce and Return Approach! • Simplest technique • Does not apply to more complex circuits.

  14. Background KVL + KCL + Ohm’s law • sufficient in analyzing any resistive circuits • difficult to use as the complexity of circuits increased • Nodal Analysis • Mesh Analysis • developed based on Kirchhoff’s laws • provide two systematic methods for describing circuits

  15. What is a mesh/mesh current?

  16. Steps of Mesh Analysis • 1. Assign a mesh current to each mesh. • 2. Apply KVL to each mesh --- express voltages in terms of mesh currents. • 3. Solve the resulting linear equations.

  17. Example

  18. Example

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