Abstract: A vehicle having a high voltage power source for operating high voltage devices, such as in-wheel electric motors for propelling the vehicle. The high voltage in-wheel electric motors are controlled by dedicated controllers paired with the devices and requiring low voltage power. The vehicle includes one or more converters paired with the dedicated controller(s) and for converting high voltage power to low voltage power suitable for powering the controllers.

Abstract: An electrical installation includes a high voltage power source having a first ground reference, and a low voltage power source having a second ground reference (21). A power unit of the electrical installation receives power from the high voltage power source and is conductively connected to the first ground reference. The installation also includes one or more peripheral units. At least one of the peripheral units receives power from the high voltage source and is conductively connected to the first ground reference. The first ground reference is galvanically isolated from the second ground reference. The power unit may include a motor drive for driving an electrical motor and may be installed in a vehicle.

Abstract: A vehicle is disclosed having a high voltage power source for operating high voltage devices, such as electric motors for propelling the vehicle. The high voltage devices are controlled by dedicated controllers paired with the devices and requiring low voltage power. The vehicle comprises one or more converters paired with the dedicated controller(s) and for converting high voltage power to low voltage power suitable for powering the controllers.