How do you find Thevenin equivalent of a circuit?
Remember the three step process:
- Find the Thevenin Resistance by removing all voltage sources and load.
- Find the Thevenin Voltage by reconnecting the voltage sources.
- Use the Thevenin Resistance and Voltage to find the total current flowing through the load.
What is Thevenin’s theorem explain with example?
Thevenin’s Theorem Example If current sources are present in the circuit, then remove the internal resistance by open circuiting the sources. This step is done to have an ideal voltage source or an ideal current source for the analysis. The voltage drop across both resistors is the same.
What is Thevenin’s theorem formula?
Any combination of batteries and resistances with two terminals can be replaced by a single voltage source e and a single series resistor r. The value of e is the open circuit voltage at the terminals, and the value of r is e divided by the current with the terminals short circuited.
What is Thevenin equivalent voltage?
The Thevenin-equivalent voltage is the voltage at the output terminals of the original circuit. For an ideal voltage source, this means replace the voltage source with a short circuit. For an ideal current source, this means replace the current source with an open circuit.
Can we use Thevenins theorem on a circuit containing a BJT?
Can we use Thevenin’s theorem on a circuit containing a BJT? Explanation: We can use Thevenin’s theorem only for linear networks. BJT is a non-linear network hence we cannot apply Thevenin’s theorem for it.
What do you mean by equivalent circuit?
Definition of equivalent circuit : an electric circuit made up of the basic elements resistance, inductance, and capacitance in a simple arrangement such that its performance would duplicate that of a more complicated circuit or network.
How do you calculate RTh in a circuit?
3. Calculate RTh = VTh / IN. Alternate method (for circuits that consist only of independent sources and resistors).
What is the main idea of a Thevenin equivalent circuit?
Thevenin’s Theorem states that “Any linear circuit containing several voltages and resistances can be replaced by just one single voltage in series with a single resistance connected across the load“.
How do I find the Norton equivalent circuit?
Example-1 Find the Norton Equivalent Circuit Across Terminals AB.
- Step-1 Find Norton equivalent current (IN).
- Step-2 Find equivalent resistance (REQ).
- Step-3 Put the value of Norton current and equivalent resistance in the Norton equivalent circuit.
- Step-1 Find the Norton current (IN).
What is equivalent circuit for voltage source?
The equivalent circuit is a voltage source with voltage VTh in series with a resistance RTh. The Thévenin-equivalent voltage VTh is the open-circuit voltage at the output terminals of the original circuit.