5.9 MILLMAN'S THEOREM

Consider a set of n independent voltage sources, each in series with a resistance representing its internal resistance. Assume that these n sources are connected in parallel and are supplying a common load. We wish to replace these n sources by a single independent voltage source in series with a resistance. The relevant circuit is shown in Fig. 5.9-1.

 

Fig. 5.9-1 Practical Voltage Sources Connected in Parallel

 

Fig. 5.9-1 Practical Voltage Sources Connected in Parallel

 

We can achieve our objective by applying Source Transformation theorem repeatedly. Each voltage source is replaced by a current source in parallel with a resistor across the terminal pair ‘a–b’. The current ...

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