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.

Systems, methods, and apparatuses for receiving wireless power using a wireless power receiver client architecture are disclosed. A simplified wireless power receiver apparatus includes an energy storage device and a radio frequency (RF) transceiver including an antenna. Energy harvester circuitry is coupled to the energy storage device and the RF transceiver, and control circuitry is coupled to the energy storage device, the RF transceiver, and the energy harvester. The control circuitry causes the RF transceiver to: establish a connection with a wireless power transmitter (WPT), transmit a beacon signal to the WPT, and receive a wireless power signal from the WPT. The control circuitry causes the energy harvester to deliver at least a portion of energy of the wireless power signal to the energy storage device for storage therein. In some embodiments, a single antenna is utilized both for transmitting the beacon signal and for receiving the wireless power signal.

The present disclosure includes a system including a power supply unit that provides an output power and a supply status indicating whether the power supply unit is receiving input power. An electronic circuit is coupled to the power supply unit to receive the output power and a standby control circuit controls turning on and off the power supply unit. A power harvesting circuit generates standby power from the supply status and provides the standby power to power the standby control circuit.

The present invention relates to exterior or interior doors for residential or commercial buildings, such as for a home, apartment, condominium, hotel room or business, and, more particularly, to a door provided with a rechargeable battery as a source of electrical power that may be used to operate electric devices mounted to the door. The door has electric devices attached thereto. The electric devices which. are powered by one or more rechargeable batteries that are charged by one or more energy harvester systems and/or by direct connection to a power source. A system for distributing the power collected from the energy harvester system and/or the wired connection are also provided.

An apparatus comprising: an inductive coupler for coupling inductively with a radio frequency, RF, H-field to provide an alternating RF voltage; a near field, RF, communicator connected to the inductive coupler for performing near field RF communication; an auxiliary circuit connected to the inductive coupler by a rectifier for obtaining DC electrical energy from the alternating RF voltage wherein the auxiliary circuit is arranged to communicate data with the near field RF communicator; wherein the rectifier comprises: a first rectifier input and a second rectifier input for receiving the alternating RF voltage, a first rectifier output and a second rectifier output for providing the DC electrical energy to the auxiliary circuit; a rectifying element connected between the first rectifier input and the second rectifier input wherein the first rectifier output is coupled to an output of the rectifying element and to the first rectifier input by a first inductor.

The disclosed apparatus, system and method may include at least the delivery of device power to a single or plurality of workstations, which may include at least one power storage unit suitable to supply power to the plurality of workstations; a plurality of control units each associated with one of the plurality of workstations, wherein each of the control units receives power from the at least one power unit, is communicatively associated with the at least one power unit, and comprises a plurality of power outputs suitable to output power from the power unit to devices associated with the respective workstation; and may include at least one ambient energy collector suitable to provide accumulated power to the at least one power unit.

According to an aspect, there is provided an apparatus for controlling a terminal device. The apparatus monitors a current charge level of a rechargeable energy storage device of the terminal device and a current energy harvesting state of an energy harvesting device of the terminal device. When the current energy harvesting state corresponds to an energy harvesting state indicative of no energy being harvested, the apparatus causes the terminal device to operate in one of a first, second and third operating modes depending on a value of the current charge level relative to first and second thresholds. The first, second and third operating modes and the first and second thresholds are defined so that the uplink transmission functionality of the terminal device is disabled when the current charge level drops below the first threshold and the downlink transmission functionality of the terminal device is disabled when the current charge level drops below both thresholds.

An optical fiber has an optical fiber core for high-power laser transmission, an optical cladding surrounding the optical fiber core, and at least one harvesting cell disposed around the optical cladding, where the harvesting cell includes an anode, a thermoelectric layer disposed adjacent to and electrically connected to the anode, and a cathode disposed adjacent to and electrically connected to the thermoelectric layer, and where the thermoelectric layer includes a polymer-based thermoelectric material.

A self-capacitance based remote power delivery device includes a power source, an energy harvesting device, and a substrate. The power source and the energy harvesting device are configured to be capacitively coupled to a self-capacitive body. The substrate is configured to be capacitively coupled to a portion of the self-capacitive body in contact with the substrate.

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.