Switching Characteristics of IGBT

Switching Characteristics of IGBT is basically the graphical representation of behavior of IGBT during its turn-on & turn-off process. The turn-on time is defined as the time between the instant of forward blocking to forward conduction mode. Here, forward conduction means the device conducts in forward direction. Turn-on time (ton) is basically composed of two … Read more

VI Characteristics of IGBT Explained

VI characteristics of IGBT is the graphical relationship between collector current and collector-emitter voltage (VCE) for different values of gate-emitter voltages. It is basically a plot of collector current (IC) versus collector-emitter voltage for various values of gate-emitter voltage (VGE). VI characteristics of IGBT is also known as Static or Output Characteristics. Let us now … Read more

What is IGBT? – Construction and Working Principle

This article explains IGBT, its symbol, construction and working principle with relevant structure and circuit diagrams. What is IGBT? IGBT (Insulated Gate Bipolar Transistor) is a three terminal power switch having high input impedance like PMOSFET and low on-state power loss as in BJT (Bipolar Junction Transistor). Thus, IGBT is a combined form of best … Read more

What is UPS? -Working & Types of UPS Explained

This article explains the UPS, its application, historical background, types and working principle of UPS with their schematic diagram. Definition: A UPS is a device which provides an uninterruptable power supply so as to maintain the continuity of supply in case of power outage. UPS stands for Uninterruptable Power Supply. Requirement of UPS: There are … Read more

2’s Complement Subtraction of Binary Numbers

2’s complement subtraction method is a way to subtract two binary numbers by actually adding one number with the 2’s complement of another number. In this article, the method of binary subtraction using 2’s complement is elaborated with examples. Method of 2’s Complement Subtraction: To implement this method for subtracting two binary numbers, the very … Read more

Hexadecimal Number System

This article explains the hexadecimal number system. Method to convert a hex to decimal, decimal to hex, hex to binary and binary to hex has also been elaborated with examples. What is Hexadecimal Number System? Hexadecimal number system is a system which uses 16 digits. Unlike decimal numbering system, this system uses digits 0,1,2,3,4,5,6,7,8,9,A,B,C,D,E &F … Read more

Why Should you Learn ETAP?

ETAP stands for Electrical Transient Analyzer Program. It is a powerful tool do modeling, simulation and analysis of power system. Before we drive deep into the scope of ETAP in industries for an Electrical Engineering graduate, it is imperative to know what exactly is ETAP? So, we shall first have a broad view of this … Read more

Integral Cycle Control of AC Voltage Controller

Integral Cycle Control is a strategy to control the output voltage of AC voltage controller. In this strategy, load is connected to the source for an integral number of cycle of input supply and then disconnected by switching off the supply for a further number of integral cycles. This strategy is also known as on-off … Read more