Abstract: An apparatus for generating electric power from the motion of a vehicle according to the disclosure includes: a magnetic fluid storage unit in which a magnetic fluid is stored and from which the magnetic fluid is discharged by a pressing force of the vehicle; a pipe unit through which the magnetic fluid discharged from the magnetic fluid storage unit moves; and an induction coil unit arranged to surround a circumference of the pipe unit so that an induced electromotive force is generated when the magnetic fluid moves.

Abstract: The embodiments described herein comprise a distributed wireless power transmission system including a plurality of wireless power transmission systems (WPTSs) coordinating transmissions to create a virtual WPTS. The plurality of WPTS coordinate amongst each other to compensate for local phase shift differences between respective clock sources so that transmissions from the WPTSs constructively interfere at a wireless power receiver client (WPRC).

Abstract: A power system includes a power conversion stage that receives power from an input source and delivers power to a load via a power distribution bus. The power distribution bus may include a DC transformer such as a fixed ratio bus converter or VTM having an equivalent series resistance. A control system samples the voltage delivered by the power conversion stage at a location close to the output of the power conversion stage, and the load voltage at a location close to the load. The samples may be synchronized by means of a data bus that provides communication between a control device and an output monitor. Synchronization may be accomplished within a sampling period that is short relative to changes in the voltages and currents. Each set of samples may be used to determine a value of the bus resistance. Multiple samples may be averaged to improve accuracy in the determination.

Abstract: A power transmitter (101) provides power to a power receiver (105) via an electromagnetic power transfer signal. The power transmitter (101) comprises an output circuit (302, 103) with a transmitter coil (103) generating the power transfer signal in response to a drive signal generated by a driver (301). A configuration controller (303) switches between power transfer configurations having different maximum power limits and voltage amplitudes for the drive signal. A transmitter (307) transmits a power configuration message to the power receiver (105) comprising data indicative of a voltage amplitude for a first power transfer configuration a receiver (305) receives a power transfer configuration change request message from the power receiver (105). The configuration controller (303) switches the power transmitter (101) to the first power transfer configuration in response to the power transfer configuration change request message.

Abstract: A power transmission device includes a transmission coil that supplies power to a power reception device, a power supply circuit that converts DC power supplied from a DC power source via a plurality of switching elements connected in a full bridge shape or a half bridge shape between DC power sources and the transmission coil into AC power and supplies the AC power to the transmission coil, a phase adjustment circuit having an LC series circuit connected in parallel with the transmission coil and a switching element connected in series with the LC series circuit, and a control circuit that controls switching on and off of the switching element of the phase adjustment circuit in accordance with a measured value of an amount of current when any of the plurality of switching elements of the power supply circuit is turned off by a current detection circuit.

Abstract: Disclosed is an operating method for a wirelessly communicating electronic device, including the following steps: a) acquisition of a radio-frequency frame representative of at least one data item intended to be transmitted by the radio-frequency transmitter in a radio-frequency message; b) determination of the amount of power available in the power storage; c) determination of the length of the radio-frequency message to be transmitted; d) determination of transmission parameters of the radio-frequency transmitter, according to the values determined for the length of the message and the amount of power available in the power storage; e) and transmission of the message by the transmitter, using the determined transmission parameters.

Abstract: A power transmitter device of a non-contact power feeding device includes a transmitter coil configured to supply power to the power receiver device, a power supply circuit including a plurality of switching elements connected between a DC power supply and the transmitter coil in a full-bridge configuration or a half-bridge configuration. The power supply circuit may be configured to switch the plurality of switching elements to an on or off state at a switching frequency to convert DC power supplied from the DC power supply into AC power having the switching frequency and supply the AC power to the transmitter coil, and a phase control circuit including at least one LC series circuit connected to both ends of the transmitter coil.

Abstract: A wireless power transfer system includes a power transmitter including a high frequency power converter circuit that converts a direct current power into a high frequency power using a switching circuit, a power transmitter coil, and an electric field shield member close to the power transmitter coil and having a structure that uses a conductive member to form an equivalent capacitance between the electric field shield member and the power transmitter coil by electric coupling therebetween during a power transmitting operation such that the value of the equivalent capacitance becomes greater than the value of an equivalent capacitance formed between the power transmitter coil and ground. The power transmitter causes electric potentials in the electric field shield member to be identical using the conductive member, suppresses changes in an electric field in a vicinity of the power transmitter coil, and suppresses radiation of the electric field noise.

Abstract: The invention presents a rectifier circuit and a rectification method for harvesting light energy and RF energy, which uses light energy receiver to convert light energy into input direct-current voltage and RF energy receiver to convert RF energy into RF voltage simultaneously. Also, by combining with injection-locked oscillating circuit, oscillating frequency of injection-locked oscillating circuit is locked according to RF frequency also amplitude of RF voltage is enhanced. By using rectifier circuit to rectify and output corresponding output direct-current voltage, both light energy and RF energy may be harvested simultaneously and energy conversion efficiency is enhanced.

Abstract: An extravehicular mobility unit (EMU) includes a resonant coil on a surface of the EMU to be coupled to a second resonant coil affixed to a structure via a resonant magnetic field. The EMU also includes a receiver in the EMU coupled to the resonant coil to provide a direct current (DC) voltage based on the resonant magnetic field. A battery in the EMU is charged based on the DC voltage.

Abstract: The present invention describes methods, systems, and devices for utilizing high-intensity regions within atmospheres of planetary bodies to receive and harvest electricity. Such high-intensity regions are formed as a result of the combined gravitational forces affecting a given planetary body and particularly the particles within the atmosphere of that planetary body. The combined gravitational forces result in a gravitational resonant frequency which affects the atmosphere most intensely within said high-intensity regions. By determining moments of gravitational resonant frequencies based on a given location, the methods, systems, and devices described herein utilize the energy provided within the high-intensity regions during the determined moments. Harvesting and further transmitting the collected energy is also disclosed.

Abstract: A system and method for wireless transmission of electricity through the air utilizes Earth's natural magnetosphere or an induced magnetosphere to produce electrons which may be systematically converted to almost weightless preparticles called muons that are transmittable from a tower with a low frequency radio signal.

Abstract: A system includes a primary coil, a first drive circuit, a first sense circuit, and a communication and control circuit for providing power inductively to a portable device that includes a battery and an inductive receiver unit including a receiver coil and a receiver circuit. A portable device includes a battery and a receiver unit capable of receiving inductive power from a compatible inductive charging system including a base unit with a primary coil and associated circuit. A system includes a system rechargeable battery, an inductive coil, a drive circuit, a sense circuit, a communication and control circuit, a receiver rectifier circuit, and a wired power input for providing power inductively to a compatible portable device comprising a battery and an inductive receiver unit including a receiver coil and a receiver circuit.

Abstract: A wireless charging mouse device, a wireless charging mouse, a lower shell of the wireless charging mouse, and a method for producing the lower shell are provided. The wireless charging mouse includes an upper shell, a lower shell, and an electronic module located between the upper shell and the lower shell. The lower shell includes an upper board, a lower board, and a wireless charging assembly located between the upper board and the lower board. A side surface of the upper board is fixed to a side surface of the lower board by gluing or melting. The upper board has a connection hole. The wireless charging assembly includes a circuit board and a wireless charging coil. A connection structure of the circuit board is exposed from the upper board by passing through the connection hole, so as to be electrically coupled to the electronic module.

Abstract: A switch device includes: a receiving conversion component, configured to receive a wireless signal and convert the received wireless signal into a power supply signal; a first power component, connected to the receiving conversion component, and configured to store electrical energy based on the power supply signal; a control component, connected to the first power component, and configured to enter a working state based on the electrical energy supplied by the first power component, and generate a control signal in the working state; and a first switch component, connected to the control component, and configured to change to be in an on or off state according to the control signal, wherein the first switch component is arranged on a power supply loop of a controlled device to which a second power component is configured to supply electrical energy in the on state.

Abstract: The invention describes a system (100) for transferring electrical power to an electrical load (110), comprising: a direct electrical voltage source (105), and at least one wave generator (145) adapted for converting the direct electric voltage into voltage waves to be transmitted to the electrical load (110); wherein said wave generator (145) comprises at least: an active switch (180) provided with two connection terminals (185, 190) and adapted for being controlled by an electric control signal between a saturation condition, in which it allows the passage of electrical current between said connection terminals (185, 190), and a prevention condition, in which it prevents said passage of electrical current, and a resonant circuit (200) sized to reduce the electrical power applied to said active switch (180) in the moments in which said active switch switches from the saturation condition to the prevention condition and vice-versa; and wherein said resonant circuit (200) comprises at least: a central electric

Abstract: A distributed radio frequency (RF) generator for wireless power transfer for wireless power transfer is described. A distributed RF generator can include an electrically-conductive loop having at least a first end and a second end that are adapted to be electrically coupled to one or more direct current (DC) power sources, where the loop comprises a plurality of segments, each of the plurality of segments comprising: a length of wire and at least one active component, wherein the at least one active component has a first terminal and a second terminal that are electrically coupled to the loop, wherein: a DC voltage exists between the first terminal and the second terminal; a DC current flows into the first terminal and out of the second terminal; an oscillating RF voltage is output across the first terminal and the second terminal; and the at least one active component is synchronized in phase.

Abstract: A power estimator calculates first estimated power values based on levels of test signals received from power receiver apparatuses, each first estimated power value indicating estimated received power of a corresponding power receiver apparatus when a power transmitter apparatus transmits power to the power receiver apparatuses. A signal transmitting circuit transmits each first estimated power value to a corresponding power receiver apparatus. A signal receiving circuit receives second estimated power values from the power receiver apparatuses, each second estimated power value indicating estimated received power of a corresponding power receiver apparatus when other power transmitter apparatuses transmit power to the power receiver apparatuses.

Abstract: A method of setting phases of a multitude of transmit elements of a phased array includes, in part, setting a phase of a first transmit element to N different values during each of N different time intervals, transmitting an electromagnetic signal from the first transmit element at each of the N time intervals, measuring a power of the electromagnetic signal at a receiving unit during each of the N time intervals, and selecting coefficients of a basis function such that a difference between a power value computed by the basis function and the measured power value associated with each of the N phases is smaller than a threshold value. The threshold value is optionally defined by a minimum of the sum of squares of the difference between a power value computed by the basis function and the power value for each of the N phases.

Abstract: A power transmitter for wireless power transfer includes a control and communications unit, an inverter circuit, a coil, and a shielding. The control and communications unit is configured to provide power control signals to control a power level of a power signal configured for transmission to a power receiver, provide a power request to an external power supply, determine if a power signal at the coil is compliant with the power request, and, if the power signal at the coil is compliant with the power request, continue to operate for wireless power transmission. The coil is configured to transmit the power signal to a power receiver. The shielding comprises a ferrite core.