Norton Equivalent Circuit Formula. Suppose in a complex network we have to find out the current through a particular branch. To convert between thevenin and norton equivalent circuits we use the following method.
This resistance is the same as the thevenin resistance the resistance looking back from ab with v1replaced by a short circuit. Remember the arrow notation for current source points in the direction of conventional current flow. In this example the norton current is obtained from the open circuit voltage the thevenin voltage divided by the resistance r.
Like the thevenin equivalent the norton equivalent does not take into account the resistance of the load the output the circuit is powering.
In this example the norton current is obtained from the open circuit voltage the thevenin voltage divided by the resistance r. Every voltage source can be converted into an equivalent current source. This figure of 14 amps becomes the norton source current i norton in our equivalent circuit. Norton s theorem is an alternative to the thevenin theorem in norton s theorem the circuit network is reduced into a single constant current source in which the equivalent internal resistance is connected in parallel with it.
