Inductor Basics


Introduction Inductor consists of wire wound around a core of ferrite material that includes an air gap. Inductor stores the energy in the form of the magnetic field. Inductor has many electrical properties when subjected to a magnetic field. One of the important property of this inductor is whenever the current flows through the wire […]

Difference Between Microprocessor and Microcontroller


The introduction of a piece of technology called “Microprocessor” has changed the way in which we view, analyze and control the world surrounding us over the past two decades. The first commercial microprocessor is 4-bit 4004 developed by Intel and was made available in 1971. Since then, it took a phenomenal success in its development […]

Sequential Circuits Basics

Asynchronous sequential cirucits

Introduction Sequential logic circuits are those, whose output depends not only on the present value of the input but also on previous values of the input signal (history of values) which is in contrast to combinational circuits where output depends only on the present values of the input, at any instant of time. Sequential circuit […]



Definition: Latch is an electronic logic circuit with two stable states i.e. it is a bistable multivibrator. Latch has a feedback path to retain the information. Hence a latch can be a memory device. Latch can store one bit of information as long as the device is powered on. When enable is asserted, latch immediately […]

Error Correction and Detection Codes


Introdcution In digital systems, the analog signals will change into digital sequence (in the form of bits). This sequence of bits is called as “Data stream”. The change in position of single bit also leads to catastrophic (major) error in data output. Almost in all electronic devices, we find errors and we use error detection […]

Introduction to Transformers


Introduction The transformer is one of the most common devices found in electrical system that links the circuits which are operating at different voltages .These are commonly used in applications where there is a need of AC voltage conversion from one voltage level to another. It is possible either to decrease or increase the voltage […]

Introduction to Logic Gates


Introduction Logic gates are the heart of digital electronics. A gate is an electronic device which is used to compute a function on a two valued signal. Logic gates are the basic building block of digital circuits. Basically, all logic gates have one output and two inputs. Some logic gates like NOT gate or Inverter […]

Gate Turn Off Thyristor

GTO Symbols

Introduction Although the thyristor is extensively used in high power applications, it always suffered from being a semi-controlled device. Even though it could be switched ON by applying a gate signal, it has to be turned OFF by interrupting the main current using a commutation circuit. In case of DC to DC and DC to […]


Symbols Used for DIAC

Introduction The diac is much similar to the transistor so more strictly it is called as a transistor than a thyristor. However, it has an important role in triac triggering and other thryristor based circuits. Several gate triggering circuits use the diac for achieving greater triggering stability and noise immunity. The DIAC stands for the […]

JK FlipFlop


Introduction In the name J-K flip flop, J K means Jack Kilby, the name of an instrumentation engineer who invented IC. A J-K flip flop is a programmable flip flop as the outputs of this flip flop can used to imitate functioning of other flip flops .This is a universal flip flop. A J-K flip […]