Automatic Voltage Regulator

An automatic voltage regulator (AVR) is an electrical device used in power supply systems to maintain a steady output voltage, regardless of fluctuations in input voltage or load conditions. It works by continuously monitoring the output voltage and adjusting the current flowing through a variable resistor (such as a thyristor or triac) to control the voltage. This helps ensure the stability and efficiency of electrical equipment and prevents damage caused by voltage fluctuations. Automatic voltage regulators are commonly used in various applications, including industrial systems, residential power supplies, and electronic devices.