What is power electronics


History of Power electronics  :

The development of the mercury arc rectifier began with the development of power electronics. This article gives a brief description of power electronics historical review and also have power electronics used, advantages as well as disadvantages. It was invented by Peter copper Hewitt in the year 1902 used to convert alternating current into direct current. after in the year of 1993 selenium rectifier were invented.

After that in the year of 1947, the BJT was invented by Walter H. Brattain and John Bardeen under the direction of William Shockley at bell laboratory. In 1956 the SCR  was introduced by general electric applications. In 1976 Power MOSFET became commercially available and finally the year of 1982 the insulated gate bipolar transistor was introduced. The history of power electronics is so vast so that it is impossible to review it within a few pages.



What is the power electronics?

Power electronics is the application of solid-state electronics to control and conversion of electric power. The first high power electronics started with the development of the mercury arc rectifier. 

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Read more >>  Power electronics systems   

Advantages of power electronics :
  • Long life
  • Flexibility
  • High reliability
  • High efficiency
  • Less maintenance
  • Less weight
  • High-quality power
  • Small size
Disadvantages of power electronics :
  • Complected design
  • Overload capacity
  • generate harmonics
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Read more >>  Power electronics advantages and disadvantages   

Power electronics applications :
  • SMPS
  • UPS
  • HVDC
  • Static switch
  • Static circuit breaker
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Read more >>  Power electronics applications 

Power Electronics is the study of electrical energy flow control using electronic circuits. 
  • Power electronics belongs partly to power electronic engineers. Power engineering primarily concerned with generation transmission, distribution, and utilization of electric energy at high efficiency.
  • On the other hand, electronics engineering is the production, transmission, and reception of data and signals of very low power levels of the order of few watts without much regard to efficiency.
  • In addition, power engineering devices are based primarily on electromagnetic principles, while in electronics engineering they are based on physical phenomena in vacuum, gas, and semiconductors.
  • The main focus of Power Electronics is the application of electronic principles to a situation that is rated at the power level rather than at the signal level and also deals with appliances and equipment based on the electronics principle.