Skip to main content

Table 7 Comparison of stability analysis in digital domain of BBC in buck mode of operation

From: Characterization of analog and digital control loops for bidirectional buck–boost converter using PID/PIDN algorithms

SystemPM (degrees)GM (db)ωg (rad/s)ωp (rad/s)Delay margin (samples)Stability state
Open loop (digital_withoutpid)InfInfInfInfInfStable with poor dynamic response
PID control (digital_PID_Cloop)1294.82 and 30831.430.30.743Stable with good dynamic response
PIDN control (digital_PIDN_Cloop)12241.1 and 30131.3 and 31.430.30.7Better stable with good dynamic response