The Thevenin equivalent circuit is represented by a single voltage source in series with a resistance, simplifying the analysis of the circuit.
Questions & Step-by-step Solutions
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Q
Q: What is the Thevenin equivalent of a circuit?
Solution: The Thevenin equivalent circuit is represented by a single voltage source in series with a resistance, simplifying the analysis of the circuit.
Steps: 6
Step 1: Identify the part of the circuit you want to simplify. This is usually the section where you want to find the voltage or current.
Step 2: Remove the load resistor (if there is one) from the circuit. This is the component you are analyzing.
Step 3: Find the open-circuit voltage (Voc) across the terminals where the load was connected. This is the voltage that would be present if no load was connected.
Step 4: To find the Thevenin resistance (Rth), turn off all independent voltage sources (replace them with a wire) and turn off all independent current sources (replace them with an open circuit).
Step 5: Calculate the equivalent resistance seen from the terminals where the load was connected. This is your Thevenin resistance (Rth).
Step 6: Now, you can represent the original circuit as a single voltage source (Voc) in series with a resistance (Rth). This is the Thevenin equivalent circuit.
