Patent ID: 9673719
Date: 2017-06-06
CPC Classifications: H02M

Claim:
1. A method of operating a dual active bridge (DAB) converter in a power conversion operation, said method comprising controlling a plurality of bridge configured switches to charge a magnetisation inductance from an input supply during a charge phase of a power cycle and to discharge said magnetisation inductance into an output of said DAB during a discharge phase of said power cycle, wherein said DAB converter comprises: wherein each of said input converter and said output converter comprises: wherein said first circuit path and said second circuit path are both completed by a third circuit path, wherein the third circuit path of said input converter comprises said inductance and said primary winding of said transformer, wherein the third circuit path of said output converter comprises said secondary winding of said transformer, wherein during said charge phase of said power cycle, said first pair of switches and said second pair of switches of said output converter are all open and one of said first pair of switches and said second pair of switches of said input converter are closed, and wherein during said discharge phase of said power cycle, said first pair of switches and said second pair of switches of said input converter are all open and one of said first pair of switches and said second pair of switches of said output converter are closed.