In a multiphase DC/DC converter having a plurality of DC/DC converters, to prevent faults in the circuit and the circuit elements constituting it even when the balance of current limiting operation among the individual DC/DC converters is disturbed due to individual and temperature-related variations...http://www.google.de/patents/US6891736?utm_source=gb-gplus-sharePatent US6891736 - Multiphase DC/DC converter