An optocoupler is a solid state electronic device, which includes a light emitter, light path and a light detector enclosed in single package. It is also referred as optoisolator, since it provides electrical isolation between any two circuits.
What is an Optocoupler? Working, Block Diagram & Applications Read More »
In Single Phase Half Wave Controlled Rectifiers the load power can be controlled in only one half cycle of the input ac supply. Figure 1: Single Phase Half Wave Controlled Rectifier.
Single Phase Half Wave Controlled Rectifier Read More »
It is possible to apply more than one input signal to an inverting amplifier. This circuit will then add all these input signals to produce their addition at the output. Such a circuit will then be called as an adder or a summing amplifier.
The voltage gain of the Voltage Follower (Buffer) circuit is 1 i.e. the output voltage will be equal to and in phase with the input voltage. In other words, the output voltage follows the input voltage. Hence the name voltage follower. Thus voltage follower is a non-inverting amplifier with a voltage gain of unity. Figure
In Inverting Amplifier, the amplified output signal will be 180º out of phase with the input signal. In other words the output signal is “inverted” as shown in Fig. 2. Therefore this amplifier is known as the inverting amplifier. Figure 1: Inverting Amplifier.
What is Inverting Amplifier Using Op-Amp? Circuit Diagram, Working, Derivation & Formula Read More »
According to the voltage division rule, the voltage across each resistor in a series electrical circuit is given by the ratio of product of the total voltage and that resistance to that of the sum of the resistances among which the voltage is divided.
What is Voltage Divider Rule? Derivation, Circuit Diagram & Formula Read More »
“In a linear, passive and bilateral single source network, the ratio of response to the excitation is constant even though the source is interchanged from the input terminals to the output terminals”.
Reciprocity Theorem – Statement, Derivation, Examples & Formula Read More »
Purely Resistive Circuit having a pure resistor ‘R’ connected across an A.C voltage source as shown in figure (1). Let the voltage applied to circuit be v.
Purely Inductive Circuit having a pure inductance ‘L’ connected across an A.C voltage source as shown in figure (1). Let the voltage applied to circuit be ‘v’.
“Maximum power transfer theorem states that the maximum power can be transferred from source (voltage source, current source) to the load only when the load resistance (RL) is equal to the internal resistance of the source (Ri)”. i.e, \[{{R}_{L}}={{R}_{i}}\]