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100results about How to "Fast charging" patented technology

Battery voltage-multiplying charging circuit and mobile terminal

The embodiment of the invention provides a battery voltage-multiplying charging circuit and a mobile terminal. The charging circuit comprises a charging port, a high-voltage charging unit, a low-voltage charging unit, a battery pack and a system. The battery pack includes a main battery and at least one extra battery; the high-voltage charging unit and the low-voltage charging unit are connected with the charging port, and the low-voltage charging unit is connected with the system and the battery pack; the high-voltage charging unit is connected with the battery pack; when quick charging is performed, the main battery and each extra battery are switched to be a series connection state, the charging voltage is transmitted to the high-voltage charging unit and the low-voltage charging unit through the charging port, the main battery and each extra battery are charged by the high-voltage charging unit, and the system is charged by the low-voltage charging unit; and when the charging is completed, the main battery and each extra battery are switched to be a parallel connection state and configured to charge the system. The battery voltage-multiplying charging circuit provided by the embodiment of the invention is able to avoid the problem that the battery body is heating and too high in temperature in the charging process.
Owner:LEMOBILE INFORMATION TECH BEIJING

Active matrix organic light emitting diode (AMOLED) pixel unit driving circuit and method, pixel unit and display device

The invention provides an active matrix organic light emitting diode (AMOLED) pixel unit driving circuit, an AMOLED pixel unit driving method, a pixel unit and a display device. The AMOLED pixel unit driving circuit comprises a switch unit, a storage capacitor, a driving thin film transistor, a current mirror thin film transistor and a voltage share thin film transistor, wherein the first input end of the switch unit is connected with a current source for supplying charging current; the second input end of the switch unit is connected with an OLED; the first end of the storage capacitor is connected with the output end of the switch unit; the second end of the storage capacitor is connected to a low level; gates of the driving thin film transistor and the current mirror thin film transistor are connected with the first end of the storage capacitor, and sources of the driving thin film transistor and the current mirror thin film transistor are connected to the low level; and the gate of the voltage share thin film transistor is connected with the first end of the storage capacitor, the source of the voltage share thin film transistor is connected with the drain of the driving thin film transistor, and the drain of the voltage share thin film transistor is connected with the OLED. By adopting a current mirror structure and a voltage share mode, the zooming proportion of the charging current Idata to current Ioled flowing through the OLED is relatively large, so that the Ioled is in a working current range of the OLED, and the Idata may be relatively high; and therefore, the charging speed of the storage capacitor is increased.
Owner:BOE TECH GRP CO LTD +1

Intelligent power regulating circuit and method of charging equipment

The invention discloses an intelligent power regulating circuit and method of charging equipment. The method comprises the steps that firstly, the state of charge (SOC) of electric vehicles and loads of the electric vehicles are worked out, and load curves are drawn; by drawing the load curves of the multiple electric vehicles of the same type, whether the load curves are astringed or not is judged, if the load curves are astringed, the load curves are output, and if the load curves are not astringed, the operations are carried out repeatedly; and according to the load curves of the electric vehicles, the maximum output power of a whole charging station is determined, a decision model is established for all terminal charging equipment through the analytic hierarchy process according to the SOC of the electric vehicles, the charging process is divided into an energy supplement stage, a power maintaining stage and a low current supplement stage, and powers of all charging ports are distributed dynamically. By the adoption of the intelligent power regulating circuit and method, the charging loads of the electric vehicles can be forecast effectively, orderly charging control is achieved by sufficiently using a charger, flexible and rapid charging of the electric vehicles is guaranteed, and meanwhile, regional load monitoring is also taken into account.
Owner:NARI TECH CO LTD +3
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