Drive scheme for weakly coupled coils

A switch converter, the device comprising:

• a converter control circuit configured to receive input from an output monitor circuit and providing outputs to an array of multiple phase control units;
• said array of multiple phase control units, wherein each phase control unit is configured to control an assigned phase unit of a multiphase switch;
• a multi-phase switch configured to receive an input voltage of the switch converter, wherein the multi-phase switch comprises at least two phase units, wherein each phase unit comprises a pair of complementary switches connected in series between said input voltage and common ground, and is configured to control an assigned coil of an arrangement of mutually weakly coupled inductive coils by a pair of complementary phase signals;
• said arrangement of mutually weakly coupled inductive coils, wherein each coil is connected to the assigned phase unit of the multi-phase switch;
• wherein the switch converter is capable of tuning the inductance of the arrangement of mutually weakly coupled inductor coils to provide a lower inductance for fast converter response or a higher inductance for suppression of current ripple, wherein the inductance tuning is performed by phase delay control between switching times of the multi-phase switch and wherein each phase unit of the multi-phase switch is capable of receiving phase control signals from said array of multiple phase control units and transferring them into phases needed for sync modes and sleep modes;
• wherein said arrangement of mutually weakly coupled inductive coils connected to output phase signals of the multi-phase switches is configured to increase effective inductance of the weakly coupled inductive coils by operating the weakly inductive coils in a same polarity or to decrease effective inductance of the weakly coupled inductive coils by operating the weakly inductive coils in an opposite polarity.