What is an active output voltage clamp?
2 Answers
An active output voltage clamp is a circuit designed to limit the voltage at its output to a specified level, protecting sensitive components from overvoltage conditions. Unlike passive clamps that rely on diodes or other passive elements, active clamps use feedback mechanisms and active components (like transistors or operational amplifiers) to control the output voltage more precisely.
When the output voltage exceeds a predefined threshold, the active clamp engages, reducing the output voltage by actively sinking current or altering the circuit's operation. This allows for more accurate voltage regulation and improved performance in various applications, such as power supplies, amplifiers, and voltage protection systems.
When the output voltage exceeds a predefined threshold, the active clamp engages, reducing the output voltage by actively sinking current or altering the circuit's operation. This allows for more accurate voltage regulation and improved performance in various applications, such as power supplies, amplifiers, and voltage protection systems.