Thevenin norton equivalent examples

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 Andrew Levido andrew. Andrew has maintained a hands-on interest in electronics, particularly embedded systems, power electronics, and control theory in his free time.

Over the years he has written a number of articles for various electronics publications and occasionally provides consulting services as time allows. Written by Andrew Levido. The Norton equivalent circuit on the right looks identical to the original circuit on the left as far as the load is concerned.

Don't miss out on upcoming issues of Circuit Cellar. Subscribe to Circuit Cellar Magazine. Andrew Levido. Transient Voltage Suppression Diodes. Rail to Rail Input Op Amps. Single-Phase Induction Motors. Boosting Op Amp Output Drive. November issue Circuit Cellar. You may also like.

By using our site, you acknowledge that you have read and understand our Cookie Policy and our Privacy Policy. Close Privacy Overview This website uses cookies to improve your experience while you navigate through the website. Using Method 2 Voltage source transformation. Find the value of RL so that power transferred is maximum. What is the maximum value of Power transferred to RL? Hint: Thevenin Theorem. V Th , can be calculated from voltage division.

Thevenin equivalent circuit will be Maximum power transfer. Hence, the power will be. To find Vth and Rth First, we assume that the load resistor is infinite.

Open circuit Calculate Vth in original circuit using open circuit condition Second, reduce the load resistance to zero short circuit.

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.