A novel transformer circuit employing multi-axis windings around a large magnetic billet receives and amplifies the energy from a flux of energetic waves emanating from the sun and other celestial bodies and entities throughout the environment. A clean source of solar energy can be harvested with an energy density that is at least 50 times greater than photon-based collectors.

An energy harvesting system is disclosed that is especially well-suited for use on aerodynamic systems such as guided projectiles or other aerobodies. A series of piezoelectric cantilevers are arranged to capture vibrations from the ambient environment and transduce the mechanical motion from the vibrations into useful electrical energy. The piezoelectric cantilevers can be arranged along different planes from one another to capture different vibrational modes and directions. A power conditioning circuit is included to receive the electrical energy produced by the piezoelectric cantilevers. A storage element coupled to the power conditioning circuit is configured to store charge based on the electrical energy produced by the plurality of piezoelectric cantilever structures. The stored charge can be used to provide low levels of power to certain electrical components on board the aerodynamic system before it has been launched.

In at least some cases, an embodiment of an electric power industry structure monitor is arranged as a distribution transformer monitor. In at least some cases, an electric power industry structure monitor is arranged as a tilt sensor monitor. In at least some cases an electric power industry structure monitor is arranged as a high-voltage tower (e.g., power pole) monitor. In some cases, the electric power industry structure monitor includes a housing arranged for positioning on an electric power industry structure, and a sensor arranged in the housing. The sensor is positioned to generate digital data associated with at least one environmental condition that exists proximal to the electric power industry structure monitor. The monitor also includes a processing circuit arranged to determine from the generated digital data that the at least one environmental condition has crossed a threshold.

A wireless tag for sensor control is connected to a sensor and configured to control execution of measurements using the sensor. The wireless tag for sensor control includes: an antenna for receiving a radio wave or a magnetic field transmitted from an external wireless device; a power generation unit configured to generate electric power based on the radio wave or the magnetic field received by the antenna; and a control unit configured to control the sensor using generated power, which is the electric power supplied from the power generation unit, wherein the control unit includes: a power supply control unit configured to use a portion of the generated power to execute power supply to the sensor; an acquisition unit configured to receive a detection result from the sensor operated by the execution of the power supply; and a transmission processing unit configured to transmit communication information including the detection result to the outside.

Systems and methods for utilizing a small form-factor, wirelessly powered transceiver are disclosed. In one embodiment, a wireless powered transceiver includes a receive antenna configured to receive a receive signal, a transmit antenna configured to transmit a transmit signal, a power harvesting system including a rectifier circuit configured convert radio frequency energy from the receive signal into DC (direct current) voltage, and a power management unit (PMU) configured to set the operating mode and biasing condition of the receive and transmit circuitry blocks and provide DC voltage from the receive circuitry block to the transmit circuitry block to maintain a minimum voltage, a receiver circuitry block configured to provide energy from the receive signal to the power harvesting system, and a transmitter circuitry block including a data modulator circuit, the data modulator circuit configured to generate the transmit signal using DC voltage received from the power management unit.

A system includes a two-conductor loop in which the loop current or current signal is controlled by a loop current controller to be proportional to a signal output from a sensor. The system further includes energy harvesting circuity in electrical connection with the two-conductor loop which includes a second current controller in parallel electrical connection with the loop current controller and a power converter in electrical connection with the second current controller. The second current controls a portion of current drawn from the two-conductor loop and delivered to the power converter from an output port thereof. The portion of the current drawn from the two-conductor loop is returned to the loop current controller from the energy harvesting circuit. Noise in the portion of the current drawn from the two-conductor loop by the second current controller is controlled by the second current controller to be below a predetermined threshold.

A mobile electronic vehicle (EV) charging station is provided. The charging station may include one or more charging bays for charging electric vehicles (EVs). The charging station includes a plurality of batteries within an interior compartment to supply power for charging the EVs. There is a power delivery subsystem to control supply of electrical power from the batteries to the charging bays. The charging station self-driving to move between a first position to a second position. In some cases, the charging station includes a drive subsystem that controls speed and/or steering based on wireless communications.

The disclosure describes techniques to provide antennae configured to harvest radio-frequency (RF) energy from the nearby environment to provide electrical energy to an electrically powered device. Antennae may be configured in different shapes, lengths, locations, and materials to efficiently collect RF energy to be converted to electrical power. In some examples, RF energy may be harvested from existing sources, such as FM radio transmissions, communication transmissions such as Wi-Fi and BLUETOOTH, and similar existing sources. In other examples, antennae may be configured to collect energy from a source specifically designated to recharge the device. In some examples, the harvested RF energy may be sufficient to power the device. In other examples, the harvested RF energy may provide enough power to reduce the amount of recharging required by other means, such as by inductive recharging.

A time-synchronized micro-scale continuous point-on-wave (CPoW) measurement device, referred to as micro-CPoW, is provided. The distribution system is an integral part of the electric power system, but not much is known about how it behaves in real-time. To address this knowledge gap, a low-cost, time-synchronized, CPoW measurement system is designed, built, and characterized herein. The purpose of the micro-CPoW measurement device is to monitor the instantaneous electric current flowing through a distribution line in real time. Detection of harmonics, identification of incipient fault conditions, and general power quality monitoring are typical uses for the measured information. Because the micro-CPoW measurement device is self-powered by the line current and communicates wirelessly, it can be installed without ground-mounted instrument transformers, low-voltage power sources, or communications cabling. Thus, this particular design of CPoW module is intended to be installed directly on a power line without the need for external support equipment.

An electromagnetic wave shielding film having a wireless energy conversion function is disclosed, which is attached to an exterior surface of the door of a microwave oven and used to absorb electromagnetic waves released by the microwave oven during operation. The electromagnetic wave shielding film comprises: a substrate carrier; a first substrate layer, provided on one side of the substrate carrier, where a wireless energy conversion unit is provided in the first substrate layer and is used to receive the electromagnetic waves and covert the electromagnetic waves to DC electrical energy; and an optically variable assembly, provided on the other side of the substrate carrier, where the optically variable assembly comprises an electrochromic layer and an electrode layer; the electrode layer is used to receive the DC electrical energy from the wireless energy conversion unit and drive the electrochromic layer to change its light transmission property.