A controller for a multi-phase switching power supply shuffles the sequence of the phases in response to a load transient to prevent synchronization of one or more phases with high-frequency load transients. The sequence may be shuffled by varying the frequency and/or sequence of the switching control...http://www.google.com/patents/US20080224678?utm_source=gb-gplus-sharePatent US20080224678 - SWITCHING POWER SUPPLY CONTROLLER WITH HIGH FREQUENCY CURRENT BALANCE
