Power amplifiers serve as fundamental electronic tools that enhance the strength of electrical signals, holding a pivotal position within numerous electronic systems. They fulfill crucial roles in applications necessitating signal augmentation, such as audio systems, RF (Radio Frequency) transmitters, and various other domains. Learn what is a power amplifier , an electronic device that increases the power of an input signal to drive output devices. Explore the different types and classes of power amplifiers and their applications in audio, RF, DC and video systems. What is an amplifier ? An amplifier (often loosely called an "amp") is an electromagnetic or electronic component that boosts an electric current. If you wear a hearing aid, you'll know it uses a microphone to pick up sounds from the world around you and convert them into a fluctuating electric current (a signal) that constantly changes in strength. A transistor-based amplifier takes the signal (the input) and boosts it many times before feeding it into a tiny loudspeaker placed inside your ... Learn what an amplifier is, how it boosts electrical signals, and the main categories of amplifiers based on functionality, configuration, and applications. Compare voltage, current, power, and operational amplifiers, and their efficiency, quality, and uses.
