CONTROL DEVICE FOR A SWITCHING REGULATOR WITH INTERLEAVED CONVERTER STAGES, SWITCHING REGULATOR AND CORRESPONDING CONTROL METHOD

摘要

A control device for a switching regulator, having two or more converter stages operating with interleaved operation, each comprising an inductive element and a switch element, generates command signals having a switching period for controlling switching of the switch elements and determining alternation of a storage phase of energy in the respective inductive element and a transfer phase of the stored energy onto an output element. The control device generates the command signals phase-offset by an appropriate fraction of the switching period to obtain interleaved operation. In particular, a synchronism stage generates a synchronism signal and a control stage generates the command signals for the converter stages timed by the same synchronism signal.