Abstract: An electric power supply is described that has direct-current (DC) to alternating-current (AC) circuitry adapted and configured to receive DC power input having a DC input voltage and convert the DC power input to multi-phase, alternating-current (AC) power output. The DC to AC circuitry includes an electromagnetic interference (EMI) noise filter to suppress EMI noise, wherein the EMI noise filter comprises two, electrically insulated, conductive rails configured and adapted to receive the DC power input, ferrite material at least partially surrounding the two conductive rails, and a current sensing element positioned in a gap in the ferrite material and configured to measure leakage current escaping to ground.

Abstract: An electric power supply is disclosed having high-voltage, direct-current (HVDC) circuitry comprising one or more DC pre-charge capacitors and one or more power transistor switches, the HVDC circuitry configured to receive high-voltage, direct-current (HVDC) input power of about 320 volts and/or greater and convert the HVDC input power to multi-phase, high-voltage, alternating-current (HVAC) output power of about 320 volts and/or greater; and low-voltage, direct current (LVDC) circuitry adapted and configured to operate on low-voltage, direct-current, wherein the LVDC circuitry is configured to control and monitor the multi-phase HVAC output power. The electric power supply is further configured to operate in reverse and convert received multiphase HVAC input power to HVDC output power.

Abstract: A system to convert electrical power to torque is disclosed where the system includes one or more motor controllers, each motor controller adapted and configured to receive power input commands and to receive high-voltage, direct-current (HVDC) input power and convert the HVDC input power to multiphase high-voltage, alternating-current (HVAC) output power, wherein each motor controller varies its respective multiphase HVAC output power in response to the power input commands received; and an electric motor assembly having a main shaft for supplying torque, the electric motor configured and adapted to receive input power as multiphase HVAC from the one or more motor controllers to rotate the main shaft. The system in an embodiment is configured as a propulsion system, wherein the shaft of the electric motor assembly is configured to supply torque to a propulsor of an aircraft.

Abstract: An electric motor assembly to supply torque is disclosed where the assembly includes a stator modules having a plurality of stator windings, each stator winding configured to receive high-voltage, alternating current; a rotor assembly, each rotor assembly having a hub and plurality of magnets arranged on the hub, the plurality of magnets each having magnetic north and south poles where the plurality of magnets are arranged along an outer periphery of the hub to alternate the magnetic north and south poles; and a main shaft to supply the torque, wherein at least one of the one or more rotor assemblies is configured to rotate the main shaft, and the at least one of the one or more rotor assemblies is associated with and concentrically contained within the one or more stator modules, the at least one of the one or more rotor assemblies being rotatable relative to the one or more stator modules

Abstract: An electric power supply is disclosed having high-voltage, direct-current (HVDC) circuitry comprising one or more DC pre-charge capacitors and one or more power transistor switches, the HVDC circuitry configured to receive high-voltage, direct-current (HVDC) input power of about 320 volts and/or greater and convert the HVDC input power to multi-phase, high-voltage, alternating-current (HVAC) output power of about 320 volts and/or greater; and low-voltage, direct current (LVDC) circuitry adapted and configured to operate on low-voltage, direct-current, wherein the LVDC circuitry is configured to control and monitor the multi-phase HVAC output power. The electric power supply is further configured to operate in reverse and convert received multiphase HVAC input power to HVDC output power.