Bipolar Amplifier

A bipolar amplifier is an electronic device that increases the strength of an electrical signal, using both positive and negative currents (bipolar means two polarities). It typically involves transistors that can amplify signals in both directions, allowing for accurate, powerful output without distortion. These amplifiers are common in audio systems, radio, and communications, where they help boost weak signals so they can drive speakers or transmitters effectively. By handling both positive and negative swings of a signal, bipolar amplifiers provide clear, high-quality amplification suitable for a variety of electronic applications.