At least one aspect of the present disclosure is directed to a method of optimizing parallel DC-DC efficiency. The method includes determining, by one or more processors of a machine, a power demand of the machine according to a load. The method includes identifying, by the one or more processors, efficiency metrics of the machine when operated with a plurality of combinations of power converters, each combination corresponding to a respective power output which combines to the power demand. The method includes selecting, by the one or more processors, a combination of power converters from the plurality of combinations, according to an efficiency metric of the combination satisfying one or more selection criterion. The method includes operating, by the one or more processors, the machine according to the selected combination of power converters, to produce power for the load according to the power demand.

A system including controller devices to be associated together by a communication bus and to be associated with multiple power supply units (PSUs) to provide power parallelly to a computer environment is disclosed. The controller devices are to communicate with each other based on at least one of the controller devices winning an arbitration to send at least one packet having a timing indicator through the communication bus to the controller devices. The PSUs provide the power for the computer environment based on the timing indicator.

A system including controller devices to be associated together by a communication bus and to be associated with multiple power supply units (PSUs) to provide power parallelly to a computer environment is disclosed. The controller devices are to communicate with each other based on at least one of the controller devices winning an arbitration to send at least one packet having a timing indicator through the communication bus to the controller devices. The PSUs provide the power for the computer environment based on the timing indicator.

A power supply system includes: a first power supply circuit for supplying, to a first load device, DC power output from a first main power source device; a second power supply circuit for supplying, to a second load device, DC power output from a second main power source device; a first connection circuit capable of connecting the first power supply circuit and the second power supply circuit to each other; and a first auxiliary power storage device connected to the first connection circuit in parallel with the first main power source device and the second main power source device.

A power control device 100 for an electrical load. The power control device 100 has an input 120 for receiving electrical power; an output 140 for supplying electrical power from the input to the electrical load; and a control module 160 for controlling the supply of electrical power to the electrical load from the output. The control module 160 is configured to define a plurality of discrete power-on timings, over a time period, during which electrical power is supplied from the output for powering the electrical load.

A power distribution system for an aircraft, and method of operating includes, including determining, by a supplemental electrical power system, an operating mode of the aircraft, selecting, by the supplemental electrical power system, at least one supplementary power source of a set of at least two supplementary power sources, and based on the operating mode of the aircraft at least one of receiving, by the selected at least one supplementary power source, a first current from the primary power bus, or selectively providing a second current to the primary power bus from the selected at least one supplementary power source.

The charging system comprises: two chargers which deliver instantaneous electrical energy for charging an electrical device; an electrical chain which links the two chargers; three charging points that are electrically connected to the chargers via the electrical chain; a switching system which connects or does not connect a charging point to the first or to the second charger; a control system which controls the switching system.

The invention relates to an overlap circuit configured to be coupled between power source(s) and load(s) for power transfer. The herein disclosed overlap circuit (100) is configured to transfer electrical power to two loads or two power sources at the same time during an overlap power transfer time period. Furthermore, the invention also relates to a system comprising such an overlap circuit.