Maximum power transfer theorem

Maximum power transfer theorem Maximum power transfer theorem states that,” Maximum power output is obtained from an A.C circuit when the load impedance is equal to the complex conjugate of the internal impedance of the circuit as seen from the terminals of the load.” Maximum power transfer theorem is particularly useful for analyzing communication circuits … Read more

Norton’s Theorem

Norton’s Theorem Norton’s theorem states that,” With respect to the terminal pair AB, the network N may be replaced with a current sources IN in parallel with an internal impedances ZN or RN. The current source IN, called the Norton’s current is the current that would flow from A to B when the terminals A … Read more

What is PID controller their types and working?

Controller Controller determines the value of controlled variable,  compare the actual value to references value, helps in determining the deviation and produces a control signal that will reduces the deviation to smallest possible value i.e either to Zero. Controller can be electrical, pneumatic, hydraulic, electromechanical or electronic types. Hydraulic controllers are used for controlling heavy … Read more

What is Thevenin’s theorem?

Thevenin’s Theorem Thevenin’s theorem states that,” With respect to terminal pair AB, the network N may be replaced by a voltage source Vth in series with an internal impedance Rth. The voltage source Vth called the Thevenin’s voltage is the potential difference(VA-VB) between the terminal A & B, Rth is the internal impedance of the … Read more