Disclosed herein is a wireless power receiving device that includes a power receiving coil that takes in AC power via a magnetic field, and a rectifier that converts the AC power to DC power and outputs the DC power to a load. The rectifier includes a plurality of diodes bridge-connected to each other, the plurality of diodes including a first diode whose anode is connected to one input terminal of the rectifier and a second diode whose cathode is connected to the one input terminal of the rectifier; a first capacitor connected in parallel with the first diode; and a second capacitor connected in parallel with the second diode. Capacitances C.sub.1 and C.sub.2 of the first and second capacitor satisfy C.sub.1<1/(2fR.sub.Lmax) and C.sub.2<1/(2fR.sub.Lmax) where a frequency of the AC power is denoted by f, and a maximum resistance value of the load is denoted by R.sub.Lmax.

The present invention relates to a system for the wireless coupling of a cellular radio end device to at least one first external antenna, in particular for coupling to an external vehicle antenna, having a coupling structure for the wireless coupling to an antenna structure of the cellular radio end device, wherein the coupling structure has at least two connections; and having a connection unit that connects the first external antenna to one of the at least two connections of the coupling structure in dependence on the coupling quality, wherein the connection unit evaluates the coupling quality between the antenna structure of the cellular radio end device and the at least two connections of the coupling structure during the normal communication operation of the cellular radio end device and/or continuously and/or for both connections simultaneously.

In an embodiment, a method for wirelessly transferring power through a low-e window includes: causing a first current to flow through a transmitter coil disposed in a first outer surface of the low-e window, the first current having a first frequency; inducing, with the first current, a second current to flow through a receiver coil disposed in a second outer surface of the low-e window, the low-e window having a metal or metal oxide layer having a first thickness; generating a voltage based on the second current; and powering an electronic device coupled to the receiver coil with the generated voltage, where the first frequency is associated with a first skin depth of the metal or metal oxide layer, and where the first skin depth is larger than the first thickness.

A battery includes a housing, and a wireless energy extracting device installed in the housing. The wireless energy extracting device includes: an RF generator module for wirelessly receiving an RF charging signal to generate electrical energy; a capacitor module; and an energy management module coupled to the RF generator module and the capacitor module, adapted to be coupled further to an energy consuming device, and performing electrical energy transfer from at least the RF generator module to at least the energy consuming device. Therefore, the battery has relatively low electrical energy loss and thus relatively high energy usage efficiency, and can be charged even if the battery is installed in the energy consuming device.

A mobile communication device charging apparatus, comprising a base assembly, a central support assembly connected to the base assembly, an electronics housing connected to the central support assembly; a speaker housing connected to the electronics housing; a shelf assembly connected to the speaker housing, and a table assembly connected to the shelf assembly. The table assembly includes one or more solar cells or arrays, the one or more solar cells or arrays to capture sunlight in order to generate power for the charging apparatus. The shelf assembly includes an opening and a lower surface, the lower surface including inductive charging assemblies to charge a mobile communication device placed thereon. The top surface of the shelf assembly protects the mobile communication device from sunlight when the mobile communication device is placed on the lower surface.

A portable power bank includes a main body, a charging slot, a back plate, and a charging module. The charging slot is at the back surface of the main body. The charging slot has an accommodating space for receiving an electronic product. The back plate is pivotally connected to the back surface and is movable between a first position and a second position. A first angle is between the back plate at the first position and the back surface, and the back plate at the second position is received on the back surface. The output terminal of the charging module is at the surrounding wall for charging the electronic product. The conversion circuit of the charging module is for converting electricity from the input terminal and outputting to the battery or the output terminal, and converting electricity stored in the battery and outputting to the output terminal.

A wireless power system is disclosed that allows data to be read and written into a wireless power transmission system of a wireless power transmitter through near-field communications (NFC). A method of exchanging data with a power transmission system in the wireless power transmitter and a graphical user interface coupled to a wireless power receiver in communications with the wireless power transmitter includes communicating a data packet with the power transmission system through a near-field communications (NFC) link between a wireless power receiver and the wireless power transmitter; receiving the data packet in the power transmission system; and performing a task defined by a header command code in the data packet.

A portable device is provided. The portable device includes a power receiving unit configured to receive a first energy or a second energy from a wireless power transmitter, the first energy being used to perform a communication function and a control function, the second energy being used to charge a battery, and the wireless power transmitter being configured to wirelessly transmit a power, a voltage generator configured to generate a wake-up voltage from the first energy, or to generate a voltage for charging the battery from the second energy, a controller configured to perform the communication function and the control function, the controller being activated by the wake-up voltage, and a communication unit configured to perform a communication with the wireless power transmitter based on a control of the controller.

A charging system comprising: a charging apparatus; and at least one guiding apparatus, comprising at least one light emitting device provided in at least one target apparatus. The charging apparatus moves to a charging location according a light emitting state of the light emitting device, to charge the target apparatus. The charging apparatus further receives battery power information from the target apparatus via wireless communication.

An example integrated circuit includes: (i) a processing subsystem configured to control operation of the integrated circuit, (ii) a waveform generator, operatively coupled to the processing subsystem, configured to generate radio frequency (RF) power transmission signals using an input current, (iii) a first digital interface that couples the integrated circuit with a plurality of power amplifiers that are external to the integrated circuit, and (iv) a second digital interface, distinct from the first digital interface, that couples the integrated circuit with a wireless communication component that is external to the integrated circuit. The processing subsystem is configured to: receive, via the second digital interface, an indication that a receiver is within transmission range of a transmitting device controlled by the circuit, and in response to receiving the indication: provide, via the first digital interface, the RF power transmission signals to at least one of the plurality of power amplifiers.