Stability Analysis of Digital Voltage Ripple-based Controlled Buck Converter with Dual-edge Constant On-time Modulation

The digital voltage ripple-based (DVR) controlled buck converter with dual-edge constant-on time (DCOT) modulation is introduced in this paper. By using the sampled-data modeling method, the stability analysis of DVR controlled buck converter with DCOT modulation is completed, and its critical stability condition is obtained. Simulation and experimental results prove the stability analysis.