Vooluvõimendina

Vooluvõimendina refers to a current amplifier in Estonian. A current amplifier is an electronic device that increases the magnitude of an electrical current. It takes an input current signal and produces an output current signal that is a larger version of the input. This is achieved by using a small input current to control a larger current flowing from a power supply. Current amplifiers are fundamental building blocks in many electronic circuits. They are used in applications where a small current signal needs to drive a larger load, such as powering speakers with audio signals or controlling motors. The gain of a current amplifier is defined as the ratio of the output current to the input current. Common types of current amplifiers include transistors, such as bipolar junction transistors (BJTs) and field-effect transistors (FETs), configured in specific circuit arrangements. These devices are crucial for signal processing, power delivery, and various control systems in electronics.