I am reading an application note "Average Current mode control" of switching power supplies written by Lloyd Dixon. Here is the abstract :
Unitrode AN Average Current Mode Control of Switching Power Supplies by Lloyd Dixon
Current mode control as usually implemented in switching power supplies actually senses and controls peak inductor current. This gives rise to many serious problems, including poor noise immunity, a need for slope compensation, and peak-to-average current errors which the inherently low current loop gain cannot correct.
Average current mode control eliminates these problems and may be used effectively to control currents other than inductor current, allowing a much broader range of topological application.
If the average current mode control is better than peak current control why there is still components which are based on peak current control ?
(On several applications I have a problem of noise immunity. Sometimes when I generate a high electric field next to my application, I see that the PWM of the UC384X is stopped as if there was a peak on the ISNS pin...)