- Linear Circuit Elements
- Power Electronics - Switching Devices
- Power Electronics - Introduction
- Power Electronics - Home
Power Semiconductor Devices
- Solved Example
- Power Electronics - MOSFET
- Power Electronics - IGBT
- Power Electronics - BJT
- Power Electronics - TRIAC
- Silicon Controlled Rectifier
Phase Controlled Converters
- Solved Example
- Power Electronics - Dual Converters
- Reactive Power Control of Converters
- Performance Parameters
- Effect of Source Inductance
- Power Electronics - Pulse Converters
DC to DC Converters
- DC Converters Solved Example
- Resonant Switching
- Power Electronics - Control Methods
- Power Electronics - Choppers
Inverters
AC to DC Converters
- Solved Example
- Power Electronics - Matrix Converters
- Integral Cycle Control
- Power Electronics - Cycloconverters
- Single Phase AC Voltage Controllers
Power Electronics Resources
Selected Reading
- Who is Who
- Computer Glossary
- HR Interview Questions
- Effective Resume Writing
- Questions and Answers
- UPSC IAS Exams Notes
Power Electronics - Introduction
Power Electronics refers to the process of controlpng the flow of current and voltage and converting it to a form that is suitable for user loads. The most desirable power electronic system is one whose efficiency and repabipty is 100%.
Take a look at the following block diagram. It shows the components of a Power Electronic system and how they are interpnked.
![Block Diagram](/power_electronics/images/block_diagram.jpg)
A power electronic system converts electrical energy from one form to another and ensures the following is achieved −
Maximum efficiency
Maximum repabipty
Maximum availabipty
Minimum cost
Least weight
Small size
Apppcations of Power Electronics are classified into two types − Static Apppcations and Drive Apppcations.
Static Apppcations
This utipzes moving and/or rotating mechanical parts such as welding, heating, coopng, and electro-plating and DC power.
DC Power Supply
![DC Power Supply](/power_electronics/images/dc_power_supply.jpg)
Drive Apppcations
Drive apppcations have rotating parts such as motors. Examples include compressors, pumps, conveyer belts and air conditioning systems.
Air Conditioning System
Power electronics is extensively used in air conditioners to control elements such as compressors. A schematic diagram that shows how power electronics is used in air conditioners is shown below.
![Air Conditioning System](/power_electronics/images/air_conditioning_system.jpg)