A power converter electrically coupled to an active magnetic bearing having a plurality of windings (140, 260), the power converter comprising: a DC bus having a positive rail (111a, 211a) and a negative rail (111b, 211b); two capacitors (113, 115, 225, 227) electrically coupled in series between the positive rail and negative rail (111a, 211a, 111b, 211b), one capacitor (113, 225) being electrically coupled to the other capacitor (115, 227) at a midpoint connection (117, 229); a first leg electrically coupled between the positive rail (111a, 211a) and the negative rail (111b, 211b), the first leg comprising a first semiconductor switching device (119, 231) electrically connected between the positive rail (111a, 211a) and a first output node (123, 235); a second leg electrically coupled between the positive rail (111a, 211a) and the negative rail (111b, 211b), the second leg comprising a second semiconductor switching device (127, 239) electrically connected between the negative rail (111b, 211b) and a second output node (129, 241); and a switch controller (150, 270) electrically coupled to the first semiconductor switching device (119, 231) and the second semiconductor switching device (127, 239), wherein, the first output node (123, 235) is electrically coupled to the midpoint connection (117, 229) by way of a first AMB winding (141, 261), and wherein, the second output node (129, 241) is electrically coupled to the midpoint connection (117, 229) by way of a second AMB winding (143, 265), characterized in that the converter additionally comprises a pair of current sensors (131, 133, 243, 245), one sensor (131, 243) being electrically coupled between the first output node (123, 235) and the midpoint connection (117, 229) by way of a first AMB winding (141, 261) and the second sensor (133, 245) being electrically coupled between the second output node (129, 241) and the midpoint connection (117, 229) by way of a second AMB winding (143, 265), and in that the sensors (131, 133, 243, 245) are shunt resistors structured to take a series of current measurements and transmit the measurements to the switch controller (150, 270). a DC bus having a positive rail (111a, 211a) and a negative rail (111b, 211b); two capacitors (113, 115, 225, 227) electrically coupled in series between the positive rail and negative rail (111a, 211a, 111b, 211b), one capacitor (113, 225) being electrically coupled to the other capacitor (115, 227) at a midpoint connection (117, 229); a first leg electrically coupled between the positive rail (111a, 211a) and the negative rail (111b, 211b), the first leg comprising a first semiconductor switching device (119, 231) electrically connected between the positive rail (111a, 211a) and a first output node (123, 235); a second leg electrically coupled between the positive rail (111a, 211a) and the negative rail (111b, 211b), the second leg comprising a second semiconductor switching device (127, 239) electrically connected between the negative rail (111b, 211b) and a second output node (129, 241); and a switch controller (150, 270) electrically coupled to the first semiconductor switching device (119, 231) and the second semiconductor switching device (127, 239), wherein, the first output node (123, 235) is electrically coupled to the midpoint connection (117, 229) by way of a first AMB winding (141, 261), and wherein, the second output node (129, 241) is electrically coupled to the midpoint connection (117, 229) by way of a second AMB winding (143, 265), characterized in that the converter additionally comprises a pair of current sensors (131, 133, 243, 245), one sensor (131, 243) being electrically coupled between the first output node (123, 235) and the midpoint connection (117, 229) by way of a first AMB winding (141, 261) and the second sensor (133, 245) being electrically coupled between the second output node (129, 241) and the midpoint connection (117, 229) by way of a second AMB winding (143, 265), and in that the sensors (131, 133, 243, 245) are shunt resistors structured to take a series of current measurements and transmit the measurements to the switch controller (150, 270).