autotunning; digital control.; frequency response.; linear compensators.; system on chip.; control systems.; controllers.; dc-dc converters.; digital control systems.; frequency response.; integrated circuit design.; power control.; power converters.; power electronics.; programmable logic controllers.; system-on-chip.; autotunning.; cross-over frequencies.; dc/dc power converters.; digital control.; digital controllers.; identification process.; linear compensators.; soc (system on chip).; process control