Abstract: The invention discloses a wireless power transmitting and receiving circuit and device, wherein the circuit includes an interface module, a transmission driving module, a receiving module, a switching module, a power coil, and a control module. The transmission driving module and the receiving module are both connected to the interface module. The transmission driving module includes a power supply switch unit and a transmission driving unit. The control module is configured to control the power supply switch unit and the switching module. The power supply switch unit is configured to connect or disconnect the interface module to the transmission driving unit. The switching module is configured to connect or disconnect the transmission driving module to the power coil through switching, or connect or disconnect the receiving module to the power coil through switching.

Abstract: The invention discloses a wireless power transmitting and receiving circuit and device, wherein the circuit includes an interface module, a transmission driving module, a receiving module, a switching module, a power coil, and a control module. The transmission driving module and the receiving module are both connected to the interface module. The transmission driving module includes a power supply switch unit and a transmission driving unit. The control module is configured to control the power supply switch unit and the switching module. The power supply switch unit is configured to connect or disconnect the interface module to the transmission driving unit. The switching module is configured to connect or disconnect the transmission driving module to the power coil through switching, or connect or disconnect the receiving module to the power coil through switching.

Abstract: A charging system includes a plurality of mobile power supplies, a plurality of charging units, and a control device. The charging unit includes a fixing device and a charging device, the fixing device being changeable between a locked state where one of the mobile power supplies can be locked in the charging unit by the fixing device and an unlocked state where the one of the mobile power supplies is unlocked from the charging unit. The charging device is configured to charge the mobile power supply fixed in the charging unit. The control device is connected to the charging units, the control device is configured to receive a charging request from a user and generate an unlock command in response to the charging request to control at least one of the fixing devices to switch to the unlocked state.

Abstract: A mobile power device with storage feature is disclosed. The mobile power device with storage feature includes a battery, an output module, a central processing unit, and a data storing module. The data storing module includes a storing circuit and a controlling circuit. The central processing unit is configured to detect whether an electronic device is connected, after the electronic device is connected, the central processing unit recognizes the electronic device as a slave device, recognizes the mobile power device with storage feature as a master device. The central processing unit further detects whether an operating system of the electronic device is a target operating system, after the central processing unit detects that the operating system of the electronic device is the target operating system, the central processing unit recognizes the electronic device as a master device, and recognizes the mobile power device with storage feature as a slave device.

Abstract: The present disclosure presents a portable power supply, which comprising an input interface, a charging and discharging control circuit, a microprocessor, a battery and an output interface. The input interface is coupled to the charging and discharging control circuit, the microprocessor, respectively. The input interface is configured to be supplied power by an external power source and transmit the power to both the charging and discharging control circuit and the microprocessor. The charging and discharging control circuit is coupled to the microprocessor, the battery and the output interface, respectively. The charging and discharging control circuit is configured to choose the charging control mode or the discharging control mode according to the charging control signal or the discharging control signal from the microprocessor, for controlling the battery to be charged or to discharge.

Abstract: A mobile power for a digital device includes: a first housing, a rechargeable battery; a main PCB; a LCD module; and a storage module. The main PCB includes: a charging input interface configured to charge the rechargeable battery; a charging management circuit configured to control charging and discharging of the rechargeable battery; and a boost circuit configured to elevate an output voltage of the rechargeable battery to a required voltage for digital device charging; and a charging output interface configured to be connected to the digital device. The storage module includes: a semiconductor media storage unit configured to store data; and a control unit configured to read data of the digital device and write the data to the semiconductor media storage unit.

Abstract: A mobile phone back-up power supply includes: a protection case configured to receive a mobile phone; a battery charging module detachably connected to the protection case; an interface terminal having one end electrically coupling to the charging module and having another end matching a charging interface of the mobile phone; and a terminal fixed at one end of the separation board covering the interface terminal. The battery charging module includes: a bottom housing defining a cavity; a battery received in the cavity; a charging module received in the cavity; and a separation board covering the charging module and the battery.