Similarity between thevenin and norton

Condition, if more short circuit access the terminal and in general circuit. Take the voltage sources out, make a short circuit Take the current sources out, make an open circuit Then calculate from the circuit.

Solution 2 current sources and 2 parallel resistances Current source transformation 2 serial resistances. View Solution. Solution: To find V Th , redraw the circuit to find Thevenin equivalent V Th , can be calculated from voltage division To fin R Th Thevenin equivalent circuit will be Maximum power transfer and the current will be Hence, the power will be.

For some reason, this equivalent is universally known as a Norton equivalent circuit. Herr Mayer seems to have been entirely forgotten, which is sad since he has a very interesting life story outside of engineering. To find the Norton equivalent circuit we go through a similar process as we did before. First, we find the Norton equivalent current I N by shorting out the load terminals as shown in Figure 4.

The current that flows through the short must be equal to I N, and is the sum of the currents through R1 and R In our example this will be The Norton equivalent resistance R N is similarly determined by looking into the terminals with the source set to zero.

The resulting Norton equivalent circuit is shown in Figure 5. One really important point to note is that these circuits are only equivalent from the perspective of the load. The voltage and current through the load will be the same under all circumstances, whether connected to the original circuit, or either of the equivalents.

The equivalent circuits themselves are not identical in behavior. In each case the power dissipated in the load is These theories are very useful in calculating and simulating changes for large scale circuits. A theorem is something that is defined on previously accepted theorems and axioms. If a result deviates from the theorem, it can be because of the theorem itself, or the theorems and axioms that were used to build the theorem were wrong.

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