Clamping circuits are electronic circuits that maintain a specific voltage level, effectively "clamping" the output to prevent it from exceeding a certain threshold. They are commonly used to protect sensitive components from voltage spikes and to ensure that signals remain within desired limits. These circuits typically use diodes, capacitors, and resistors to achieve their function. A common application of clamping circuits is in signal processing, where they help to shape waveforms and prevent distortion. By controlling the voltage levels, clamping circuits play a crucial role in maintaining the integrity of electronic signals.