Aktiivseadme

Aktiivseadme is a term used in Estonian to describe an active device. In electronics and electrical engineering, an active device is a component that can inject power into a circuit or has the ability to control the flow of current or voltage. Unlike passive devices, which only consume or store energy, active devices can amplify signals, generate oscillations, or switch.

Common examples of active devices include transistors, vacuum tubes, operational amplifiers (op-amps), and diodes. These components are fundamental building blocks in electronic circuits, enabling the creation of complex systems such as amplifiers, oscillators, digital logic gates, and power supplies. The behavior of active devices is often described by their characteristic curves, which illustrate the relationship between voltage and current under different operating conditions.

The ability of active devices to manipulate electrical signals makes them essential for modern electronics. They are used in virtually all electronic devices, from simple radios and televisions to sophisticated computers and communication systems. Understanding the principles of active devices is crucial for anyone studying or working in the fields of electronics, electrical engineering, and telecommunications.