A system and method for combining power from DC power sources. Each power source is coupled to a converter. Each converter converts input power to output power by monitoring and maintaining the input power at a maximum power point. Substantially all input power is converted to the output power, and the controlling is performed by allowing output voltage of the converter to vary. The converters are coupled in series. An inverter is connected in parallel with the series connection of the converters and inverts a DC input to the inverter from the converters into an AC output. The inverter maintains the voltage at the inverter input at a desirable voltage by varying the amount of the series current drawn from the converters. The series current and the output power of the converters, determine the output voltage at each converter.

A wearable electronic device is provided that includes a battery, at least one solar panel configured to charge the battery, an output charger connected through a wire to the out least one solar panel, and a controller configured to charge an external electronic device through the output charger.

Aspects of the disclosure relate to a semiconductor device power management system including a semiconductor device of a set of semiconductor devices provided on a substrate, wherein the semiconductor device includes an independent power supply unit.

A hybrid electrical power supply control system for providing electrical energy to at least one load. The load may alternate between a first low energy consuming operational modus and a second high energy consuming operational modus. The control system may include a first power source comprising at least one battery unit and a second power source comprising at least one energy harvesting unit and arranged to harvest and convert energy into Direct Current, DC, energy, and wherein the converted DC energy is stored in a charge collecting unit. The control system further includes an operational modus detecting unit and a power source switching unit, connected to the operational modus detecting unit and arranged to alternately connect the first power source and the second power source to the load.

A hybrid electrical power supply control system for providing electrical energy to at least one load. The load may alternate between a first low energy consuming operational modus and a second high energy consuming operational modus. The control system may include a first power source comprising at least one battery unit and a second power source comprising at least one energy harvesting unit and arranged to harvest and convert energy into Direct Current, DC, energy, and wherein the converted DC energy is stored in a charge collecting unit. The control system further includes an operational modus detecting unit and a power source switching unit, connected to the operational modus detecting unit and arranged to alternately connect the first power source and the second power source to the load.

The invention relates to an electric or hybrid means of transport comprising a high voltage bus and a low voltage bus. The high voltage bus is for delivering energy to at least one propulsion motor. The low voltage bus is for delivering energy to parts operating at low voltage. The electric or hybrid means of transport is equipped with a solar panel, the panel comprising groups of solar cells connected to a primary bus of an associated distributed maximum power point tracker. The distributed maximum power point tracker having a secondary bus to exchange energy with other distributed maximum power point trackers. The secondary bus of at least one of the distributed maximum power point tracker is connected to the low voltage bus, thereby eliminating the need for a DC/DC converter between the high voltage bus and the low voltage bus.

The invention relates to an electric or hybrid means of transport comprising a high voltage bus and a low voltage bus. The high voltage bus is for delivering energy to at least one propulsion motor. The low voltage bus is for delivering energy to parts operating at low voltage. The electric or hybrid means of transport is equipped with a solar panel, the panel comprising groups of solar cells connected to a primary bus of an associated distributed maximum power point tracker. The distributed maximum power point tracker having a secondary bus to exchange energy with other distributed maximum power point trackers. The secondary bus of at least one of the distributed maximum power point tracker is connected to the low voltage bus, thereby eliminating the need for a DC/DC converter between the high voltage bus and the low voltage bus.

A system and method for combining power from DC power sources. Each power source is coupled to a converter. Each converter converts input power to output power by monitoring and maintaining the input power at a maximum power point. Substantially all input power is converted to the output power, and the controlling is performed by allowing output voltage of the converter to vary. The converters are coupled in series. An inverter is connected in parallel with the series connection of the converters and inverts a DC input to the inverter from the converters into an AC output. The inverter maintains the voltage at the inverter input at a desirable voltage by varying the amount of the series current drawn from the converters. The series current and the output power of the converters, determine the output voltage at each converter.

A system and method for combining power from DC power sources. Each power source is coupled to a converter. Each converter converts input power to output power by monitoring and maintaining the input power at a maximum power point. Substantially all input power is converted to the output power, and the controlling is performed by allowing output voltage of the converter to vary. The converters are coupled in series. An inverter is connected in parallel with the series connection of the converters and inverts a DC input to the inverter from the converters into an AC output. The inverter maintains the voltage at the inverter input at a desirable voltage by varying the amount of the series current drawn from the converters. The series current and the output power of the converters, determine the output voltage at each converter.

A long-duration power system configured for powering an electric load without the need for direct, wired connection to an outside power supply. The power system comprises a combination electromagnetic and solar power system. The system includes a rechargeable battery, photovoltaic modules, an electromagnetic (EM) receiver, an EM transmitter, and a power/battery management system. Primary electrical power is provided by the photovoltaic cells within the photovoltaic modules when the system is in light. Directed energy from the remote EM transmitter is configured to be aimed at the EM receiver, as needed, to augment the electricity produced by the photoelectric cells. The power/battery management system monitors the power system to ensure that the battery and the electric loads do not operate outside their safe limits. The power system may further include limit switches to prevent the power system from operating outside of safe limits.