Patent ID: 7956590

Claim:
A method for controlling a converter of the multiphase interleaving type, the converter including a plurality of phases, the method comprising the steps of: detecting when a change of a load applied to an output terminal of the converter occurs by detecting a derivative of a voltage signal at the output terminal; in response to the derivative indicating a change of the load applied to the output terminal of the converter, simultaneously turning off all of the phases of the converter; and recovering a driving interleaving phase shift so as to restart a normal operation of the converter, wherein the detecting step comprises: providing an input amplifier connected to a first voltage reference, the input amplifier having a first input terminal connected to an inner voltage reference, a second input terminal connected to an input terminal of the controller, and an output terminal feedback connected to the second input terminal through a resistive element; and providing an output amplifier having a first input terminal connected to the output terminal of the input amplifier, a second input terminal receiving a voltage value equal to the sum of the inner voltage reference and a triggering voltage of the output amplifier, and an output terminal supplying a positive derivative of a voltage signal on the output terminal of the converter.