Super-regenerative demodulator circuits

Regenerative receiver Super-regenerative receiver A regenerative receiver is a receiver that uses feedback around an active device in a bandpass circuit, causing it to operate on the verge of oscillation. The active device may then provide high amplification of an RF signal in a receiver circuit that needs few components. In a super-regenerative receiver, the amplitude of the oscillation grows at the desired RF frequency and a lower frequency oscillation (within the same stage or from a second oscillator stage) periodically interrupts or "quenches" the main RF oscillation. This may occur at an ultrasonic rate.