Patent ID: 8711591

Claim:
An AC/DC converter comprising: at least two phase legs connected in series between first and second DC connection terminals of the AC/DC converter, wherein each phase leg comprises: an AC connection having first and second AC connection terminals arranged to connect the phase leg to a phase of an AC system; a phase branch comprising at least one converter cell and having first and second branch end terminals; and a capacitor; wherein the capacitor is connected between the first branch end terminal and the first AC connection terminal, the capacitor forming a DC blocking capacitor; the second AC connection terminal is connected to the second branch end terminal; and wherein the series connection of the phase legs between first and second DC connection terminal is such that a first series connection point in a phase leg is located between the first branch end terminal and the DC-blocking capacitor, while a second series connection point is located between the second branch end terminal and the second AC connection terminal such that the second AC connection terminal is connected to the second branch end terminal via the second series connection point.