This application provides a wireless charging receiving apparatus, a method, a terminal, and a system. The receiving apparatus includes a receiver coil, a rectifier, and a controller. The receiver coil is configured to receive electromagnetic energy transmitted by a transmitter coil and output an alternating current. The rectifier includes at least two controllable switches, and is configured to rectify the alternating current from the receiver coil to a direct current by using the at least two controllable switches. The controller is configured to perform phase-locking on a phase of a current fundamental component of the alternating current received by the rectifier, to obtain a periodic signal having a same frequency as the current fundamental component; and the controller is further configured to: generate a synchronization reference signal having the same frequency as the periodic signal, generate drive signals of the controllable switches in the rectifier based on the synchronization reference signal, and control, based on the drive signals, the controllable switches in the rectifier to convert the alternating current into the direct current, where the drive signals and the current fundamental component have the same frequency. After the phase-locking, a period of the synchronization reference signal does not change due to a sudden change of load, and frequencies of the drive signals do not jump, so that the entire wireless charging system works in a steady state.


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    Title :

    WIRELESS CHARGING RECEIVING APPARATUS, METHOD, TERMINAL, AND SYSTEM


    Additional title:

    VORRICHTUNG, VERFAHREN, ENDGERÄT UND SYSTEM FÜR DRAHTLOSEN LADEEMPFANG
    APPAREIL, PROCÉDÉ, TERMINAL ET SYSTÈME DE RÉCEPTION DE CHARGE SANS FIL


    Contributors:
    MAO YUNHE (author) / WU ZHIXIAN (author) / ZENG XIAOSHENG (author) / LIU YANDING (author)

    Publication date :

    2024-04-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / H03L Automatisches Steuern oder Regeln, Inbetriebsetzen, Synchronisieren oder Stabilisieren elektronischer Schwingungs- oder Impulserzeuger , AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES



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