A servo-controlled stabilizer is an electronic device designed to maintain a stable output voltage despite fluctuations in the input voltage. It uses a feedback mechanism to continuously monitor the output and make real-time adjustments, ensuring that connected equipment receives a consistent power supply. This is particularly important for sensitive electronics that can be damaged by voltage spikes or drops. These stabilizers are commonly used in various applications, including industrial machinery, computers, and medical equipment. By providing a reliable power source, servo-controlled stabilizers help improve the performance and lifespan of electrical devices, reducing the risk of malfunction or damage due to unstable voltage levels.