Thevenin Norton Theorem. Thévenin s theorem and its dual norton s theorem are widely used to make circuit analysis simpler and to study a circuit s initial condition and steady state response. Any linear electric network or a complex circuit with current and voltage sources can be replaced by an equivalent circuit containing of a single independent voltage source v th and a series resistance r th.
I n frac v th r i n. The thevenin resistance r used in thevenin s theorem is the resistance measured at terminals ab with all voltage sources replaced by short circuits and all current sources replaced by open circuits. Norton s theorem for linear electrical networks known in europe as the mayer norton theorem states that any collection of voltage sources current sources and resistors with two terminals is electrically equivalent to an ideal current source i in parallel with a single resistor r.
An option is convert thévenin equivalent circuit in norton simply using source conversion method shown in circuit analysis part 1.
Since thevenin s and norton s theorems are two equally valid methods of reducing a complex network down to something simpler to analyze there must be some way to convert a thevenin equivalent circuit to a norton equivalent circuit and vice versa just what you were dying to know right. The thevenin resistance r used in thevenin s theorem is the resistance measured at terminals ab with all voltage sources replaced by short circuits and all current sources replaced by open circuits. Norton s theorem for linear electrical networks known in europe as the mayer norton theorem states that any collection of voltage sources current sources and resistors with two terminals is electrically equivalent to an ideal current source i in parallel with a single resistor r. It can also be calculated by dividing the open circuit voltage by the short circuit current at ab but the previous method is usually preferable and gives.
