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How Morgan Chopper does work?
Morgan Chopper: In this post let us discuss about Morgan chopper in detail. It is good to refresh about chopper basics and Chopper types. Please click here to understand the basics of the Chopper and...
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SCR Triggering Circuit Requirements
Thyristor Firing Circuit Requirements; In this post, we are going to see about the various requirements to be met for the trigger circuits of SCR. Various methods are available to turn on the...
View ArticleThyristor Turn OFF Methods in Chopper Circuits
Chopper Circuit SCR Turn OFF Methods In this short post, let us discuss about various methods to turn OFF/openning the conducting thyristors in the DC chopper circuits. Before proceeding further is...
View ArticlePower Electronics 2 mark Questions from University Question Papers
Power Electronics 2 mark Questions Frequently asked in University Question Papers [1] What do you understand by constant torque drive and constant power drive? [AU/PED-May 2003] Constant Torque Drive...
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Power Supply related Interview Questions with Answers -Set10
Power Supply related Interview Questions with Answers In this post we have shared some of simple interview questions related to power supply. Before proceeding further it is good to refresh about...
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Diode Power Loss Calculation
How to Calculate Power Dissipation of Diode? Introduction: Before proceeding further just remember the following points about the diode: When the diode is forward biased ( Anode is positive with...
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How to provide reverse voltage protection?
How to protect Circuit against applying reverse voltage? OR How to provide reverse voltage protection? Consider the below example circuit. If we apply proper voltage (connecting properly to the...
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How Crowbar Protection Circuit (Over Voltage Protection) Works?
Over Voltage Protection - How Crowbar Circuit Works? The Crowbar protection circuit is a fail-safe protection circuit. It protects the load against overvoltages. It is placed across the power supply...
View ArticleSCR Ratings and Specifications
SCR Specifications and Ratings: The main specifications of the SCR are its voltage rating and current rating. In this post, let us see various ratings of thyristor. Voltage Rating: Peak Invese Voltage...
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How Class A Chopper Works? Class A Chopper Operation Tutorial
Understanding Class A Chopper Operation Tutorial We already discussed about the basics and various types of chopper. Please click here to know more about the Basics of Chopper and various types of...
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MOSFET Based Reverse Voltage Protection, Reverse Battery Connection Protection
Reverse Voltage Protection Using MOSFET In our previous post we had seen How to protect the circuit against applying reverse current/ reverse battery connection using normal PN junction diode and using...
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HVDC Transmission System Basics, Block Diagram, Working
HVDC Transmission System: One of the important power electronics field application is High Voltage DC [HVDC] Transmission System. For large power transmission over long distances, the HVDC proves to be...
View ArticleHVDC Advantages, Disadvantages Over HVAC Transmission System
HVDC Advantages, Disadvantages Over HVAC Transmission System In this short post let us see various advantages and disadvantages of HVDC transmission system over HVAC transmission system. HVDC = High...
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How Class D Chopper Works?
Class-D Chopper Operation In our previous post, we have discussed about the basics of chopper and chopper classification. It is highly recommended to refresh about chopper basics, chopper types. Click...
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Flyback Converter Working Principle
Fly Back Converter - Basic Concept: This is the popular isolated converter (input and outputs are isolated) used in low and moderate power levels. The high frequency transformer provides the isolation...
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DC - DC Chopper: Principle of Operation
DC to DC Chopper Circuit- Operating Principle: A chopper is a high speed ON/OFF semiconductor switch. It connects source to load and disconnects the load from source at a fast speed. By doing this, a...
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Four Quadrant Operation of Motors
Four Quadrant Operation of Motors: We know that, (1) All types of DC-DC converters are capable of operating the motor operation in the first quadrant. (2) Some converters are capable of operating in...
View ArticlePower Electronics Viva Questions with Answers
Power Electronics Viva Questions and Answers [1] What are the advantages and disadvantages of Flyback converter? Advantages: (1) No inductor is required at the output which is compulsory is the other...
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Power BJT Safe Operating Area [SOA]
BJT Safe Operating Area - SOA What is Safe Operating Area? The safe operating area is defined as the maximum voltage and current limits within which the power semiconductor device can be operated...
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Class-B Chopper Tutorial
How Class-B Chopper Works? Class-B Chopper Tutorial Type B Chopper - An Introduction: In this post we are going to see how the class B chopper does work? Before proceeding further it is highly...
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