In one embodiment, an apparatus includes a power supply operable to output power to a load along with at least one other power supply, a sensing component for identifying a load level, and a control component for switching the power supply from a full power mode to a power saving mode based on the identified load level. The power supply shares current with the other power supply at a lower current and generally the same voltage as the other power supply while in the power saving mode.

In one embodiment, an apparatus includes a power supply operable to output power to a load along with at least one other power supply, a sensing component for identifying a load level, and a control component for switching the power supply from a full power mode to a power saving mode based on the identified load level. The power supply shares current with the other power supply at a lower current and generally the same voltage as the other power supply while in the power saving mode.

Disclosed is an electric aircraft, which includes a fuselage and at least one wing coupled to the fuselage. The electric aircraft includes a plurality of tilting fans coupled to the at least one wing, the plurality of tilting fans being configured to move between a vertical lift position and a forward flight position. The electric aircraft includes a plurality of tilting mechanisms coupled with at least one tilting fan. The electric aircraft includes a first actuator coupled to a first subset of the plurality of tilting mechanisms. The first subset of tilting mechanisms are identified among the plurality of tilting mechanisms according to a coupling scheme. The first actuator tilts a first group of tilting fans coupled to the first subset of the plurality of tilting mechanisms simultaneously.

A vehicle includes a drive system ground fault determination unit configured to determine that, when the first magnetic contactor is in a conduction state, the drive system electrical system has a ground fault when a ground stray capacitance of the drive system electrical system measured by a drive system ground fault sensor included in the drive system electrical system exceeds a drive system conduction state threshold value, and to determine that, when the first magnetic contactor is in a non-conduction state, the drive system electrical system has a ground fault when the ground stray capacitance of the drive system electrical system measured by the drive system ground fault sensor exceeds a drive system non-conduction state threshold value, which is different from the drive system conduction state threshold value.

A vehicle includes a drive system ground fault determination unit configured to determine that, when the first magnetic contactor is in a conduction state, the drive system electrical system has a ground fault when a ground stray capacitance of the drive system electrical system measured by a drive system ground fault sensor included in the drive system electrical system exceeds a drive system conduction state threshold value, and to determine that, when the first magnetic contactor is in a non-conduction state, the drive system electrical system has a ground fault when the ground stray capacitance of the drive system electrical system measured by the drive system ground fault sensor exceeds a drive system non-conduction state threshold value, which is different from the drive system conduction state threshold value.

Desk top items with LEDs or another light source also include at least one USB-unit or USB-module and, optionally, additional outlet-units, to supply power to other electric or digital devices such as a smart phone or digital data device. The USB-unit(s), USB-module(s) or outlet-unit(s) fit within or are installed anywhere on the desk top item's housing, including anywhere on a base, pole, bar, stand, step, contour, edge, or wall of the housing.

Desk top items with LEDs or another light source also include at least one USB-unit or USB-module and, optionally, additional outlet-units, to supply power to other electric or digital devices such as a smart phone or digital data device. The USB-unit(s), USB-module(s) or outlet-unit(s) fit within or are installed anywhere on the desk top item's housing, including anywhere on a base, pole, bar, stand, step, contour, edge, or wall of the housing.

A resonant transformer connected between a ground terminal and elevated terminal draws current from the earth's electric field through a primary winding of the transformer. An impulse generator applies a high voltage impulse to the primary winding of the resonant transformer to cause current to flow from the ground terminal through the primary winding. The flow of current through the primary winding of the resonant transformer induces a current in the secondary winding, which may be converted and filtered to a usable form, e.g. 60 Hz AC or DC.

A resonant transformer connected between a ground terminal and elevated terminal draws current from the earth's electric field through a primary winding of the transformer. An impulse generator applies a high voltage impulse to the primary winding of the resonant transformer to cause current to flow from the ground terminal through the primary winding. The flow of current through the primary winding of the resonant transformer induces a current in the secondary winding, which may be converted and filtered to a usable form, e.g. 60 Hz AC or DC.

Apparatus and associated methods relate to equalizing wearing of a plurality of electrical power generators of an aircraft. Such equalization is achieved by logging operating conditions of at least a powered subset of the electrical power generators and then comparing of the logged operating conditions of each of the plurality of electrical power generators. Based on the comparison of the logged operating conditions, one of the plurality of electrical power generators for use the aircraft is recommended. A signal indicative of the recommended one of the electrical power generators determined is then generated.