A Power Amplifier Circuit Is Used to Drive the Loads Like Speakers with Minimum Output Impedance. Speakers Require High Power at Low Impedance. Here the...
A power amplifier circuit is used to drive the loads like speakers with minimum output impedance. Speakers require high power at low impedance. Here the amplifier circuit is designed using push pull class AB configuration.
What is power amplifier function?
As their name suggests, the main job of a “Power Amplifier” (also known as a large signal amplifier), is to deliver power to the load, and as we know from above, is the product of the voltage and current applied to the load with the output signal power being greater than the input signal power.
Depending on the type of output device that is connected, power amplifiers are divided into the following three types: Audio Power Amplifiers. RF Power Amplifiers. DC Power Amplifiers.