» Power Electronics

Power Electronics

Power Electronics

In this page, articles related to DC Chopper, Inverter, Cycloconverter, Industrial Application of Semiconductor devices, Protection of Semiconductor Devices, Three Phase rectifiers and semiconductor switching device like SCR, IGBT, GTO are given.

Semiconductor Devices

Structure, working and characteristics of Diac

Structure, working and characteristics of Triac

Structure, working and characteristics of UJT

Structure, working and characteristics of IGBT

Structure, working and characteristics of GTO

Structure, working and characteristics of MCT

Structure, working and characteristics of SCR

Static and Dynamic characteristics of SCR

UJT As an relaxation oscillator

Three Phase Rectifier

Working of Three Phase half wave uncontrolled rectifier

Working of Three Phase full wave uncontrolled rectifier

Working of Six Phase half wave uncontrolled rectifier

Effect of transformer winding reactance on working of uncontrolled rectifier

Comparison between uncontrolled rectifiers

Industrial Applications of Semiconductor Devices

Pulse Transformer OR Isolation Transformer

Light dimmer ( Fan regulator circuit )

AC time delay circuit

DC time delay circuit

Static AC circuit breaker

Static DC circuit breaker

Firing of SCR by UJT half wave circuit

Firing of SCR by UJT full wave circuit

RL Phase shift control

RC Phase shift control

Resistance welding using triac and diac

Resistance welding

Three phase welding

Phase locked loop control

Speed control of universal motor

Speed control of Induction motor by solid state devices

Speed control of DC motor by solid state devices

How to improve power factor of converter?

Commutation Methods

Commutation Method of SCR

Class A Commutation ( Self or Current or Resonance Commutation )

Class B Commutation

Class C Commutation ( Voltage or Complementary Commutation )

Class D Commutation ( Auxiliary Commutation )

Class E Commutation ( External Pulse Commutation )

Class F Commutation ( AC or Natural or Line or Phase Commutation ) 

DC Chopper

Working Principle of DC Chopper

Methods of Chopper output voltage control

Working of step up chopper

Working of step up / step down chopper

Configuration of chopper

Type A Chopper

Type B Chopper

Type C Chopper

Type D Chopper

Type E Chopper

Jones Chopper

Morgan Chopper

Speed control of Slip ring Induction Motor by DC Chopper

Speed control of DC Series Motor by DC Chopper

Inverter

Principle of Inverter

Which is the switching semiconductor devices used for Inverter?

Classifications of Inverter

Working of Current source Inverter ( CSI )

Working of Voltage source Inverter ( VSI )

Compare VSI and CSI

Working of single phase half bridge inverter

Working of single phase full bridge inverter

Series inverter ( Load commutated Inverter )

Parallel inverter

Pulse width modulation of the Inverter

Compare Inverter AC and Non - Inverter AC

Cycloconverter

Principle of Cycloconverter

Types of Cycloconverter

Step up Cycloconverter

Function of inter – group reactor

Advantages, Disadvantages and Applications of Cycloconverter


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