Adaptive dual stage identification control method for a power stage of a power converter

A power converter comprising a switched power stage controlled by a control law implemented by a compensator, means for identifying at least one parameter of said power stage during ramp-up of the power converter and means for adapting the control law of the compensator according to the identified at least one parameter of said power stage, wherein the means for adapting the control law comprise means for adapting, means for normalizing and means for scaling a parameter of the control law, the power converter further comprising means for determining a response of the stage;

• means for identifying at least one other parameter of the power stage by characterizing the response;
• and wherein the means for adapting for the control law comprise means for further adapting the control law according to a characteristic of the response,
• wherein the power stage comprises an inductor and an output capacitor, and wherein the at least one parameter of a component of the power stage to be identified is the capacitance C, and wherein the capacitance C is determined by measuring an average inductor current iL,AVG during ramp up time Δt and a voltage drop of said capacitance C at a start of the ramp up and at an end of the ramp up and computing C=iL,AVG*Δt/ΔV, wherein ΔV is a difference between a voltage drop of said capacitance C between the start of the ramp up and the end of the ramp up.