Electronics

This article outlines the basic operating or working principle of a Single Phase Half Bridge Inverter with the help of circuit diagram. Single Phase Half Bridge Inverter is a type of Single-Phase Bridge Inverter. It is a voltage source inverter. Voltage source inverter means that the input power of the inverter is a DC voltage … Read more

This article explains Single Phase Full Bridge Inverter with the help of circuit diagram and various relevant waveforms. Comparison between half and full bridge inverters have also been detailed. Single Phase Full Bridge Inverter is basically a voltage source inverter. Unlike Single Phase Half Bridge Inverter, this inverter does not require three wire DC input … Read more

An inverter is a device which converts DC power into AC power at desired output voltage and frequency. The DC power input to the inverter is obtained from an existing power supply source or from a rotating alternator through a rectifier or a battery, fuel cell, photovoltaic array or magnetohydrodynamic (MHD) generator. For household application, … Read more

This article outlines the Circuit Diagram, Working Principle, Various waveforms, Advantages and Disadvantages of Load Commutated Chopper. Circuit Diagram of Load Commutated Chopper: Load Commutated Chopper is a type of chopper which consists of four thyristors and one commutating capacitor. Figure below shows the circuit diagram of a load commutated chopper. Four thyristors are shown … Read more

Current Commutated Chopper is a type of chopper in which commutation of thyristor used in the circuit take place due to oscillatory current through it. This article explains current commutated chopper along with its circuit diagram, working principle and various waveforms. Circuit Diagram: The circuit diagram of a current commutated chopper is shown below. In … Read more

Voltage commutated chopper is one of the simplest and earliest chopper circuit. This chopper is generally used in high power circuit where load fluctuation is not very large. This chopper is also known as Parallel Capacitor Turn Off Chopper, Impulse Commutated Chopper or Classical Chopper. Working Principle of Voltage Commutated Chopper: The working principle of … Read more

There are mainly two types of chopper: Step-up and Step-down chopper. This classification is based on the average DC output voltage of chopper. However, on the basis of quadrant operation, a chopper may be classified into five different types: Class-A, Class-B, Class-C, Class-D and Class-E chopper. This article outlines the classification of chopper on the … Read more

A four quadrant chopper is a chopper which can operated in all the four quadrants. The power can flow either from source to load or load to source in this chopper. In first quadrant, a Class-E chopper acts as a Step-down chopper whereas in second quadrant it behaves as a Step-up chopper. This type of … Read more

Class-D or Type-D chopper is a circuit configuration of chopper in which power can flow in either direction i.e. from source to load and load to source. The operation of this chopper is confined in first and fourth quadrant. This type of chopper is also known as Two quadrant Type-B Chopper. The necessary condition for … Read more

The main difference between a GTO and an SCR is that a GTO can be turned OFF by the application of gate signal whereas SCR can cannot be switched OFF by gate signal. To turn OFF an SCR, a separate commutation circuit is required whereas a Gate Turn Off thyristor can be made OFF by … Read more