ELECTRIC POWER INVERTER

The invention relates to an electric power inverter (10) for an electrical machine of an electrically powered drive system. The electric power inverter (10) incorporates a capacitor board (20) having a plurality of capacitors (21), and more than one semiconductor board (30) each having a plurality of power semiconductors (31), which are mutually stacked in a stacking direction (11), with a clearance, in a stack formation (12), and are electrically interconnected. The plurality of capacitors (21) are arranged on the capacitor board (20) in the stacking direction (11), and are fitted to a side thereof facing the semiconductor boards (30). The plurality of capacitors (21) are arranged on the capacitor board (20) to form more than one open location space (23) between the capacitors (21) on the capacitor board (20), each location space (23) positioned to accommodate one of the respective semiconductor boards (30), and the respective semiconductor board (30) is arranged within the respective location space (23), with a clearance to the capacitor board (20).According to the invention, at least some capacitors (21) are arranged in the middle of the capacitor board (20) and the semiconductor boards (30) are all arranged on the edge of the capacitor board (20), so that current paths on the capacitor board (20) extend generally radially from the middle to the edge of the capacitor board (20).The invention also relates to an electrical machine having said electric power inverter (10).