Introduction of Low Power Amplifier

Sep 09, 2021

Introduction of Low Power Amplifier

A low power amplifier is an electronic amplifier designed to increase the power amplitude of a given input signal. The power of the input signal is increased to a level sufficient to drive the load of output devices such as speakers, headphones, and RF transmitters. Unlike voltage/current amplifiers, low-power amplifiers are designed to directly drive the load and used as the final module in the amplification chain.
The input signal of the low power amplifier must be higher than a certain threshold. Therefore, instead of passing the original audio/RF signal directly to the low power amplifier, it is pre-amplified with a current/voltage amplifier and sent to the low power amplifier as input after making the necessary modifications.

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