  This article is the second part of a paper series about interference in
extremum (i.e., peak or valley) current-mode control, which applies to both
fixed and variable switching frequency power converters. Specifically, this
part presents three control conditioning methods that mitigate the adverse
effect of interference. These methods are new ways to use: (i) slope
compensation; (ii) low-pass filtering; and (iii) the phenomenon of
comparator-overdrive-delay, for control conditioning. The stability criterion,
closed-loop dynamics, and transient performance are derived with mathematical
rigor for each method. The design tradeoffs are illustrated, discussed, and
compared. The effectiveness of all three methods are demonstrated and validated
in hardware using a power converter operating at multi-MHz switching
frequencies.
