Printed circuit board comprising a plurality of power transistor switching cells in parallel

A printed circuit board comprising:

• a pair of input terminals consisting of a positive direct current (DC) terminal and a negative DC terminal;
• an output terminal;
• and
• N power switching cells, N being an integer greater than two, the N power switching cells operating in parallel, each power switching cell comprising:
• a transistor leg comprising a first transistor and a second transistor connected in series, a drain of the first transistor being connected to the positive DC terminal, a source of the second transistor being connected to the negative DC terminal, a source of the first transistor being connected to a drain of the second transistor via an electrical line comprising a connection middle-point, the connection middle-point being connected to the output terminal;
• and
• a gate driver circuit comprising a first gate driver electrically connected to a gate of the first transistor and a second gate driver electrically connected to a gate of the second transistor for controlling respective switching ON and OFF of the first and second transistors;
• and
• wherein the N transistor legs of the corresponding N power switching cells are positioned on the printed circuit board to substantially form a convex polygon having N edges of substantially the same length, each one of the N transistor legs of the corresponding N power switching cells being positioned along one of the edges of the convex polygon.