Abstract: A smart-home device may include an energy-storage element that stores energy that is harvested from an environmental system and a solid state relay (SSR) switching integrated circuit (IC). The SSR switching IC may include switching elements that operate in a first state and a second state. The IC may also include a control circuit that causes the switching elements to operate in the first state to activate a function of the environmental system until the energy-storage element has dropped below a threshold. The control circuit may also cause the switching elements to operate in the second state and harvest energy from the environmental system, determine that a first time has elapsed since the switching elements began operating in the second state, and cause the one or more switching elements to again operate in the first state.

Abstract: A power supply apparatus configures an on-board power supply system that includes a first battery and a second battery. A first module and a first detecting unit are electrically connected to the first battery as a first electrical load. A second module and a second detecting unit are electrically connected to the second battery as a second electrical load. The first module and the second module configure an electric power steering apparatus. A starter is electrically connected to the first battery. The first battery and the second battery are electrically connected by a connection path. A resistor unit is provided on the connection path.

Abstract: A system for wireless power reception, preferably including one or more: antennas, dynamic impedance matches, RF-DC converters, DC impedance converters, and/or DC power outputs. A method for wireless power reception, preferably including: receiving power wirelessly at an antenna, dynamically adjusting an input impedance of a dynamic impedance match coupled to the antenna, and/or delivering the power to a load.

Abstract: A wireless power transmission apparatus includes: a transmitter that wirelessly transmits electric power; and a receiver that can receive, in a resonant relation with the transmitter, a transmission signal including the electric power transmitted from the transmitter, wherein the receiver includes a frequency variable unit that can change a reception resonant frequency; a detecting unit that detects reception power; and a control unit that controls the frequency variable unit to perform frequency adjustment such that the reception power detected by the detecting unit is maximized.

Abstract: Example wirelessly powered unmanned aerial vehicles and tracks for providing wireless power are described herein. An example apparatus includes a track section having a transmitter coil to generate an alternating magnetic field and an unmanned aerial vehicle having a receiver coil. The alternating magnetic field induces an alternating current in the receiver coil when the unmanned aerial vehicle is disposed in the alternating magnetic field.

Abstract: A control circuit of a code modulator sets first to third states to a code modulation circuit. In first state, first and fourth switch circuits are on, and second and third switch circuits are off. In second state, first and fourth switch circuits are off, and second and third switch circuits are on. In third state, all first to fourth switch circuits are on during transition from the first to second state, and vice versa. A control circuit of a code demodulator sets fourth to sixth states to a code demodulation circuit. In fourth state, fifth and eighth switch circuits are off, and sixth and seventh switch circuits are on. In fifth state, fifth and eighth switch circuits are on, and sixth and seventh switch circuits are off. In sixth state, all fifth to eighth switch circuits are on during transition from fourth to fifth state, and vice versa.

Abstract: [Object] To provide a power transmission and reception control device configured to check whether another consumer is controlling a direct-current bus line when interchanging direct-current power. [Solution] Provided is a power transmission and reception control device including: a power transmission and reception control unit configured to control transmission and reception of direct-current power over a direct-current power line through a DC-to-DC converter connected to the direct-current power line; a power transmission and reception management unit configured to request the power transmission and reception control unit to control the DC-to-DC converter; and a power transmission and reception arbitration unit configured to request the power transmission and reception management unit to perform transmission and reception of power through the DC-to-DC converter.

Abstract: Electrical power is dynamically managed a power source a load. A control switching system has a plurality of monitor nodes, a control switch having two switching states, and an electrical power storage cell connected to the power source in one of the switching states for storing voltage, and operative for discharging the stored voltage to the electrical load in the other of the switching states. A programmed controller dynamically monitors operating conditions at the monitor nodes during operation of the electrical load and the power source, and switches the control switch between the switching states in response to the monitored operating conditions for supplying a voltage of a desired waveform shape to the load.

Abstract: A wireless power supply device that wirelessly supplies power from a stator side to a plurality of power-receiving antennas disposed on a rotor rotated about an axis (O) at intervals in a circumferential direction includes: an oscillator (90) that oscillates a high-frequency signal; and an annular power transmitter (71) that has a leaky waveguide (80) in which a plurality of radiating portions (83) that radiate the high-frequency signal as a radio wave are arranged in the circumferential direction and extend in a circular arc shape in the circumferential direction.

Abstract: A wireless power transmitter includes: a current adjuster configured to convert an input power into a transmission current, which is periodically varied according to a transmission frequency; and a power transmitter configured to receive the transmission current and wirelessly transmit power according to the transmission frequency.

Abstract: A back-up control unit of a back-up power source device executes: a battery failure determination process of determining whether or not a battery failure has been detected by a failure detecting unit; when it is determined that battery failure has been detected in the battery failure determination process, a switching instruction determination process for determining, on the basis of an instruction signal from a monitor circuit, whether or not an instruction to switch to a P range has been made by a user; and when it is determined that a switching instruction has been made in the switching instruction determination process, a shifting instruction process for starting power supply from a back-up power source to a shift control unit and instructing the shift control unit to shift to the P range.

Abstract: The light device has USB charger has AC outlet power source and has AC-to-DC circuit to change one of Alternative current to 1st voltage DC and the 1st voltage DC though the circuit-inside or IC or DC-to-DC circuit to get 2nd voltage or though more DC-to-DC devices to get more voltage DC current. The light device has at least one of 5 Volt DC to supply to USB Charger Charging-port output-end and one of desire voltage DC to supply to DC light source. Or/The 1st AC to AC light source and has one of DC selected from 1st, 2nd, or more voltage DC current to USB Charger charging-port's output end so the said light device has (1) illumination function by DC or/and AC light source and (2) USB charger function by supply desired 1st or 2nd or more other voltage DC current to USB charging-port at 5 Volt DC. The light device optional has outlet-ports to get 1st AC directly though conductive parts to outlet-ports to supply AC to other device.

Abstract: An energy storage system includes one or more new and renewable energy power stations generating power with a new or renewable energy source, and an energy storage facility including a plurality of energy storage apparatuses to be charged by one of an external power grid supplying power to a power load and the one or more new and renewable energy power stations, and to be discharged to supply the power to the power load, wherein the plurality of energy storage apparatuses have different charging and/or discharging periods.

Abstract: Disclosed herein is a system and method for powering a medical imaging machine as well as an accompanying workstation, the system comprising an engine connected to a generator with a main circuit panel in electrical connection with the generator to create a branch circuit. Embodiments include a DC power supply electrically connected to the branch circuit; an inverter placed in electrical connection with a plurality of capacitors electrically connected in series; a generator control in electronical connection with the inverter and the generator; and an inverter panel in electrical communication with the inverter and providing a first output at a first voltage for the medical imaging machine and a second output at a second voltage for the workstation controls of the medical imaging machine. In a preferred embodiment, the engine is further arranged for propelling a truck which contains all of the power system components along with the medical imaging system.

Abstract: A device operative to transfer power wirelessly includes a drive-sense circuit (DSC), memory that stores operational instructions, and processing module(s). The DSC generates a drive signal based on a reference signal and provides the drive signal to a first coil via a single line and via a resonating capacitor, and simultaneously senses the drive signal via the single line, to facilitate electromagnetic coupling to a second coil to transfer power wirelessly to another device. The DSC also detects electrical characteristic(s) of the drive signal. The processing module(s) generates the reference signal and processes the digital signal to determine the electrical characteristic(s) of the drive signal. In some examples, the processing module(s) adapts the reference signal based on detection of the other device (e.g., based on interpreting the electrical characteristic(s) of the drive signal).

Abstract: Disclosed is a fuel cell system that stops producing electricity and exhausts residual electricity in an emergency situation. The fuel cell system includes a stack receiving a reactive gas including a hydrogen and/or an oxygen to produce the electricity, a pump supplying the reactive gas to the stack, a discharge circuit including a resistor that discharges a residual power in the stack and a first relay that electrically connects or disconnects the resistor to or from the stack, a generator connected to a rotational shaft of the pump to convert a driving energy of the rotational shaft of the pump to an electric energy, and a first controller controlling the first relay. The first controller receives the electric energy from the generator and controls the first relay to electrically connect the stack and the resistor such that the residual electricity in the stack is exhausted in the emergency situation.

Abstract: A power switch includes a bridge-connected switching circuit with (1) a pair of MOSFETs back-to-back in series between line and load connections, an interconnection point of the MOSFETs being a first common connection, and (2) a pair of diodes back-to-back between the line and load connections, an interconnection point of the diodes being a second common connection. A line/load controller has supply inputs connected to the first and second common connections for receiving operating power, and (1) places both MOSFETs in the ON state to deliver normal operating current to the load for normal operation, and (2) places both MOSFETs in the OFF state to deliver (by body diode conduction) a substantially reduced leakage current to the load when the load is not powered for normal operation, the leakage current providing the operating power to the line/load controller.

Abstract: A system and method for supplying uninterruptible power includes a housing, a power supply input for a DC power source, a power source equipment input, a powered device output, an alternative power supply, a control module, and a power source equipment extension. The control module includes a comparator, a switch, a line filter and protector and an injector. The injector includes a regulator and PoE power management module. The alternative power supply includes a plurality of battery packs in series. The system can be located at a remote location with only DC power sources, such as generators, batteries, and solar cells.

Abstract: A direct current power system. The direct current power system includes a direct current bus system, a solar power system, an energy storage system, a wind power system, a rectifier system and an inverter system. The solar power system includes a plurality of solar panels, is electrically coupled to the energy storage system and is configured to supply a first direct current power at 48 volts. The energy storage system includes a plurality of battery stacks and is configured to supply a second direct current power at 380 volts to the direct current bus system. The wind power system includes at least one wind turbine assembly and is configured to supply a third direct current power at 380 volts to the direct current bus system. The rectifier system is configured to supply a fourth direct current power at 380 volts to the direct current bus system.

Abstract: A living space feature control apparatus includes a living space feature controller, a junction box controller receiver, wireless capabilities, and a programmable user interface. The living space feature control apparatus is configured with modular units including a junction box, backplate, device control assembly and faceplate making the control apparatus toollessly exchanged, upgraded or replaced. The control apparatus functions in a variety of ways including identifying different users, recording user preferences, automatically turning lights on and off according to user preferences, closing blinds automatically, initiating security actions, acting as an intercom system and triangulating occupant location. The living space feature controller may include inductive coils for inductive signal and power transfer and a rotary optical encoder for selectable user living space control.