The present invention relates to a method for power balancing a power grid (10) having multiple phases (12:1,2 3) and a common ground (0). The power grid (10) is connected to at least one load (13, 17) causing a non-uniform power consumption between the multiple phases (12: 1, 2, 3) of the power grid (10). The method comprises: monitoring power provided to the power grid (10) in controller (18), storing available energy in the power grid (10) in an energy storage (16) using multiple inverters (I1, I2, I3), each inverter (I1, I2, I3) is connected between the energy storage (16) and each phase (12: 1, 2, 3) of the power grid (10), and redistributing power between phases (12: 1, 2, 3) based on power available in the energy storage (16) by controlling power flow through the inverters (I1, I2, I3) by the controller (18) based on the non-uniform power consumption.

The present invention relates to the technical field of electronics, and provides a boosting circuit, a battery device, and an electronic cigarette. An output end of the boosting module is connected to a first end of the protection capacitor; an anode of the rectifier diode is connected to a second end of the protection capacitor, and a cathode of the rectifier diode is connected to the first end and a load of the voltage feedback module; the second end of the voltage feedback module is connected to a feedback end of the boosting module and a first end of the output control resistor, and a second end of the output control resistor is grounded; an enabling end of the boosting module is connected to a controller.

The present invention relates to the technical field of electronics, and provides a boosting circuit, a battery device, and an electronic cigarette. An output end of the boosting module is connected to a first end of the protection capacitor; an anode of the rectifier diode is connected to a second end of the protection capacitor, and a cathode of the rectifier diode is connected to the first end and a load of the voltage feedback module; the second end of the voltage feedback module is connected to a feedback end of the boosting module and a first end of the output control resistor, and a second end of the output control resistor is grounded; an enabling end of the boosting module is connected to a controller.

According to at least one embodiment, the present disclosure provides an electro-hydraulic brake comprising: a main brake unit configured to provide braking hydraulic pressure to a plurality of wheel cylinders by driving a motor; an auxiliary brake unit connected to the main brake unit to be filled with high-pressure braking hydraulic pressure, and configured to provide braking hydraulic pressure to the plurality of wheel cylinders when an operation error of the main brake unit occurs; a main battery configured to supply power to the main brake unit and the auxiliary brake unit; and an auxiliary battery configured to supply power to the auxiliary brake unit when the main battery fails, wherein the auxiliary brake unit comprises an auxiliary brake control unit that controls charging and discharging of the auxiliary battery, and a power module that monitors a state of the main battery and transmits the state to the auxiliary brake control unit, and a battery management module that monitors a state of charge (SOC) of the auxiliary battery and transmits the state of charge to the auxiliary brake control unit.

A watch band changing cradle for a smart watch eliminates the need to use a finger nail to press release buttons on the backside surface of a smart watch when changing or swapping watch bands using slide-in band attachment fittings. The cradle is configured so that the smart watch nests and naturally aligns itself in the cradle so that release protrusions in the cradle can be used reliably to depress the release buttons on the backside of the smart watch. The cradle can be adapted to hold a disc-shaped induction charging pad which is magnetically attracted to the smart watch. The cradle can make the smart watch easier to stow when charging, and the magnetic attraction helps to align and hold the smart watch in the cradle.

A charging device, implemented by a first terminal, includes a transceiver, a voltage converter, and a power supply. The voltage converter is connected with the transceiver and the power supply, and is configured to step up a voltage output by the power supply and provide the stepped up voltage for the transceiver when the first terminal supplies power, and to step down a voltage input by the transceiver and supply the stepped down voltage to the power supply when the first terminal is charged. The transceiver is configured to send a wireless charging signal out based on the voltage stepped up by the voltage converter when the first terminal supplies power, and to receive a wireless charging signal and convert the received wireless charging signal into an input voltage to transmit the input voltage to the voltage converter when the first terminal is charged.

This disclosure presents a portable load bank apparatus, system, method of control, and method of manufacture. A portable load bank apparatus may comprise one or more of a vehicle, a load bank, a set of batteries, a set of battery chargers, one or more processors, and/or other components. The load bank may be configured to perform a load test of an external power source. The processor(s) may be configured to cause one or more battery chargers in the set of battery chargers to direct an amount of a power output received by the load bank from the external power source to the set of batteries. The set of batteries may be used to provide electrical energy to one or more of an electric motor of the vehicle, one or more other electric vehicle, and/or other sources that may need electrical energy.

For a programmable direct current (DC)-DC converter application, a driver system includes a switched mode power circuit for providing a DC power signal to an electrical load and a control block. Control block includes interfaces coupled to receive at least one real-time input signal from a low voltage region of the switched mode power circuit and to provide at least one control signal to the low voltage region. Control block configures the switched mode power circuit to provide the DC power signal having at least one power parameter within a tolerance of a power configuration setting value of the electrical load. Control block responds to the at least one real-time input signal from the low voltage region to adjust operation of the low voltage region via the at least one control signal. Low voltage region can include a plurality of switched converter circuits.

Methods and systems for charging a battery utilizing a negotiable power supply in which the power supply and a component of a charge circuit negotiate a level of power are disclosed. A charge circuit may include a controller to communicate with the negotiable power supply to request a power signal comprising a voltage and a maximum current, which may then be provided by the negotiable power supply. A voltage value and/or maximum current value of the negotiated power signal may be provided as parameters to a model of one or more components of a charge signal shaping circuit. The circuit model may utilize the provided power parameters when modeling one or more charge circuit components to generate an accurate model of the charge circuit and used to control a charge circuit to provide power to recharge the battery that limits a power level that may damage the battery during charging.

A server includes a communication device and a processor. The communication device obtains a power rate unit price dependent on a region where external charging is performed and a time slot when external charging is performed. The processor calculates a first power rate indicating a power rate when the external charging is performed with a first power feeding facility provided at a departure place before departure of a vehicle, calculates a second power rate indicating a power rate when the external charging is performed with a second power feeding facility provided in the vicinity of a traveling route after departure of the vehicle, and when the second power rate is lower than the first power rate, reduces an amount of power feeding during the external charging with the first power feeding facility, as compared with when the second power rate is equal to or higher than the first power rate.