A charging device (100, 300) and an operating method thereof are provided. The charging device (100, 300) is installed to a power system (200, 400) through a first power line (101, 301), a second power line (102, 302) and a ground line (103, 303). The charging device (100, 300) includes a first…
A system includes: a battery charger to convert AC power to DC power to charge a battery, wherein the battery charger includes: an upper switch to condition an input voltage and input current; a lower switch to condition the input voltage and the input current: an upper silicon controlled rectifier…
A charging system for electric vehicles includes a line interphase transformer, LIT-based rectifier configured for connecting an input of the LIT-based rectifier to an AC medium-voltage power signal and for outputting a medium-voltage DC-signal; a modular DC/AC converter with large step-down gain…
This application provides an uninterruptible power supply. A rectifier of the uninterruptible power supply includes six first rectifier diodes, six second rectifier diodes, three alternating current side relays, six direct current side relays, a DC/DC conversion unit, and a controller. The other…
A charging circuit (113), a terminal device (11), an adapter (14), and a charging system (10) and method are disclosed, and are mainly applied to a charging process of the terminal device (11). The terminal device (11) may be charged by using an adapter (14) having no electrolytic capacitor, which…
Onboard medium-voltage vessel electric charging apparatus (10) and method for onboard medium-voltage charging enabling compensating for voltage variations of at least one energy storage device (60) during charging thereof.
Provided is an adapter and a combination of a battery pack and an adapter. The combination of a battery pack and an adapter includes the battery pack. The battery pack includes a battery pack interface at least capable of being detachably connected to a power tool. A first adapter includes a plug…
A charging apparatus includes: a housing formed with an accommodating space; and a circuit board assembly disposed in the accommodating space and including at least a printed circuit board provided with multiple electronic elements. The output power of the charging apparatus is greater than or…
Methods and systems for providing computer implemented services using configurable hardware components are disclosed. To update operation of a configurable hardware component, a large amount of data may be provided to a single input/output pin of the configurable hardware component. The large…
A manufacturing method of a flexible charging pad includes: providing a double-sided tape to form an adhesion layer, one of two isolation papers is attached on the first adhesion surface, and another of the two isolation papers is attached on the second adhesion surface; removing the isolation…
Power converting devices () for power tools. One embodiment provides a power converter device () including a power source (), a power converter () coupled to the power source (), and an electronic processor () coupled to the power converter () to control the operation of the power converter (). The…
An electric vehicle (EV) charging station for fast charging (e.g. 5 to 15 minutes) an electric vehicle (EV). The EV charging station can be configured to charge multiple EVs and multiple conventional vehicles at the same time. The EV charging station can include a power source, an electric…
According to one embodiment, the charging circuit includes the control unit maintains an ON state of the main switching element by being driven within the predetermined time after power is input to the input unit and stopping the function of the time constant circuit, and when the full charge…
A portable power pack having a housing, a rechargeable lithium battery positioned in the housing, a liquid crystal display (LCD), a wireless charging coil, a light emitting diode (LED) flash light, a universal serial bus (USB) port, a direct current (DC) port, and a power management circuit. The…
A battery cell balance circuit includes an AC/DC converter (300), a plurality of battery cells (Cell 1-Cell m, Cell 1-Cell 6), a plurality of switches (S1A-SmB, S1-Sm+1, RL1-RL6), an isolated DC/DC converter (400), a circuit switch (SC), and a control unit (500). The AC/DC converter (300) receives…
A device charging system includes a legacy battery-powered mobile electronic device configured for wired-only charging and a wireless charging enabled battery pack. The wireless charging enabled battery pack may contain one or more battery cells as well as a power management integrated circuit (IC)…
Embodiments of this application provide a power supply circuit, including a first power conversion module, a plurality of battery banks, a first bus, and a second bus. A first wiring terminal of the first power conversion module is connected to the battery bank, a second wiring terminal of the…
A multi-port charging system includes a controller having a power input terminal coupled to a DC power output of a converter, multiple power output terminals coupled to the power input terminal, and a communications input terminal. The system includes multiple charger ports, the respective charger…
The present application provides a terminal device charging method and apparatus, and a storage medium. Said method comprises: when it is determined that a terminal device is connected to a charging connection device, acquiring a charging power corresponding to each fast charging protocol matching…
An inverter and battery charger system that uses no power magnetic components to convert DC power supply from a plurality of batteries to AC power and achieves very high efficiency and small size. The inverter takes advantage of the different voltages in a series string of batteries to create small…
A system in a vehicle includes a first set of one or more windings and a second set of one or more windings electrically isolated from the first set of one or more windings. The system also includes a first inverter coupled to a battery of the vehicle and the first set of one or more windings and a…
Devices and methods described herein facilitate rapid wireless recharging, while reducing risk of injury, damage, or discomfort caused by heat generated during recharging. The embodiments described herein are useful in a variety of context, including for IoT devices, personal electronics, electric…
Disclosed by present disclosure are a self-powered power supply drive circuit and a self-powered power supply drive chip. The self-powered power supply drive circuit includes a charging detection circuit, a current sampling switch tube, a charging switch tube, a sampling circuit and a control…
A power inverter includes first and second inputs and a plurality of power switches in communication with the first and second inputs. First, second and third outputs communicate with the plurality of power switches. First, second and third conductors are configured to connect the first, second and…
Provided is an adapter and a combination of a battery pack and an adapter. The combination of a battery pack and an adapter includes the battery pack. The battery pack includes a battery pack interface at least capable of being detachably connected to a power tool. A first adapter includes a plug…
An electrical system can include a first bidirectional AC-DC converter having an input couplable to a grid connection and an output couplable to a battery and a second bidirectional AC-DC converter having an input couplable to the grid connection or a convenience outlet and an output couplable to…
Technology for charging at least one battery is described. An aspect of the technology involves charging a battery using alternating current (AC) power by periodically stopping () charging of a battery of a mobile energy storage and power consumption device (A) with AC power, and when charging of…
Devices and methods described herein facilitate rapid wireless recharging, while reducing risk of injury, damage, or discomfort caused by heat generated during recharging. The embodiments described herein are useful in a variety of context, including for IoT devices, personal electronics, electric…
A portable power pack having a housing, a rechargeable lithium battery positioned in the housing, a liquid crystal display (LCD), a wireless charging coil, a light emitting diode (LED) flash light, a universal serial bus (USB) port, a direct current (DC) port, and a power management circuit. The…
A charging system utilizing energy storage multiplication is provided. An energy storage battery pack of the charging system is directly connected to a DC power transmission bus. When the charging request is initiated by the charging device, the charging device takes the power from the DC bus, the…