Dual-Stage Feedback Techniques for Single-Pole Feedback Compensation

May 24, 2012 // By Vicor
This technical paper proposes and studies the effects of a dual-stage compensation technique for achieving greater than 100kHz crossover frequency of a single pole system converting from 48 V to 1.2V.  By placing a separate non-inverting gain stage after the error amplifier, the necessary gain-bandwidth of the op amp can be significantly reduced allowing for high crossover frequency and good transient response.
Vicor, dual stage compensation, 100kHz crossover,