Tricky but Easy Electrical Engineering!
Peak Inverse Voltage or PIV is the maximum voltage appearing across the p-n junction diode when it is non-conducting. A diode do not conducts when it is reversed biased. This means peak inverse voltage is the maximum reversed biased voltage across the diode terminals when it is put in a circuit. Every diode has a … Read more
What is Bridge Rectifier? Bridge Rectifier is a full wave rectifier which converts sinusoidal AC input to DC. This circuit comprises of four diodes which are so connected that two diodes conducts during positive cycle of supply input whereas remaining two conducts during the negative half cycle. A full wave rectifier is one which converts … Read more
A Center Tapped Full wave Rectifier is a circuit which makes unidirectional flow of current through the load during the full cycle of input voltage. Two diodes are so connected across the terminals of center tapped transformer secondary terminals that one diode conducts for positive half cycle and another diode conduct for negative half cycle … Read more
Current through an Ideal Diode: The diode equation gives an expression for the current through a diode as a function of voltage. The Ideal Diode Law, expressed as shown below Where, I = the net current flowing through the diode I0 = Reverse Saturation Current V = applied voltage across the terminals of the … Read more
As we know, both Snubber Circuit and Crowbar Circuit is used for protection against Overvoltage using Thyristor but they way they protect the Thyristor has some difference. Crowbar Circuit: Power supplies are normally reliable, but if they fail then they can cause significant damage to the circuitry they supply. To protect against this it is … Read more
Step potential is the voltage between the feet i.e. one step of a person standing near an energized grounded object. Touch potential is the touch voltage between the energized object and the feet of a person in contact with the object. It is equal to the difference in voltage between the object and a point … Read more
SCR / Thyristor is a four layer three junction device. It mainly consists of interleaved layers of P and N layers. It can block Voltage of either polarity but conducts current only in one direction that is from Anode to Cathode under normal working of forward biasing. Basically to forward bias an SCR we need … Read more
First we will describe what avalanche breakdown is. Avalanche breakdown occurs at p-n junction which is moderately doped and has a thick junction means have depletion layer width high. Avalanche breakdown occurs when we apply high reverse voltage across the p-n junction. As we apply more and more reverse voltage across the junction, the electric … Read more
Most of us use laptop / mobile and we charge our laptop daily by using their charger. But did you ever notice the round portion on the charger as shown in figure below. Did you ever think of what is that round portion? The round portion as shown in the figure is Ferrite used for … Read more
DC – DC Booster: Booster converter is a combination of Transistors, diodes, and/or inductor or capacitor. The combination of active electronic elements (diodes and transistors) provides a DC voltage step up (say 1.5 to 9 v) while the combination of passive elements acts as a filter to reduce ripples. Its basic function is to step … Read more