Amplifiers Topologies Overview 

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Introduction to Power Amplifiers Topologies 

Techniques have centered around linear or switch mode power amplifiers. 

    Linear amplifiers are heavier, and less efficient than switching amplifiers but they are overall less expensive and less complex and offer better EMI/RFI* specifications.

Many significant changes in technology have resulted in lower cost per watt of switch mode amplifiers, which is the case of Class D and Digital topologies.  Designers have used these recent technological advances to reduce size and weight of power packages.
This presentation provides an overview of the most commonly used topologies and list their most important features.

*EMI = Electro Magnetic Interference.

*RFI = Radio Frequency Interference.

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