Abstract: A wireless power transfer device with EMI suppression includes a power conversion circuit board, a wireless power transfer coil group assembly and an eddy current damper (ECD) with a stable potential. The ECD is close to the wireless power transfer coil group assembly and is connected to a low-alternating current (AC) impedance direct current (DC) plane of the power conversion circuit board through a conductor.

Abstract: Disclosed is a modular wireless charging system, belonging to the technical field of wireless charging, the modular wireless charging system including an output power supply (1) with a built-in control circuit for wireless charging, at least one cable (2) for supporting the transmission of a high-frequency alternating current or direct current required for wireless charging, and at least one transmitting coil group (3) for wireless charging, wherein the cable (2) has one end connected to the output power supply (1) and the other end connected to the transmitting coil group (3). The control circuit or a chip for wireless charging may be built in a power adapter or power supply to enrich usage scenarios of wireless charging, and the functions of traditional direct-current power adapter and power supply are also realized, thereby providing more basic technical support for the research and development of wireless charging in the future.

Abstract: A wireless power transfer device with EMI suppression includes a power conversion circuit board, a wireless power transfer coil group assembly and an eddy current damper (ECD) with a stable potential. The ECD is close to the wireless power transfer coil group assembly and is connected to a low-alternating current (AC) impedance direct current (DC) plane of the power conversion circuit board through a conductor.

Abstract: An output device for wireless charging, relating to the field of wireless charging. The output device for wireless charging comprises an isolation transformer (12), a first numerical control switch unit (14), a wireless coil module (13), an information extraction unit (15), and a processor unit (16). The primary side of the isolation transformer is connected to a direct current input end. The first numerical control switch unit generates an alternating current on the primary side of the isolation transformer by means of connection and disconnection. The wireless coil module outputs alternating current electric energy needed for wireless charging. The information extraction unit is used for extracting current information on the isolation, filtering and regulation isolation transformer to obtain corresponding real-time information, and transmitting the real-time information to the processor unit.

Abstract: A wireless charging transmission device, including a wireless charging transmission circuit module (1.0), a high-frequency alternating-current power transmission line (1.1) and a transmission coil module (1.2), wherein the wireless charging transmission circuit module (1.0) is installed in an energy conversion part shell (1.4), the transmission coil module (1.2) is installed in an energy transmission part shell (1.5), and the wireless charging transmission circuit module (1.0) is electrically connected to the transmission coil module (1.2) via the high-frequency alternating-current power transmission line (1.1), so that the energy of the wireless charging transmission circuit module (1.0) is transmitted to the transmission coil module (1.2) at a very high frequency. The wireless charging transmission device can reduce the heat amount in a wireless charging region and nearby regions significantly and make a wireless charger small in size and extremely thin.

Abstract: A wireless charging transmission device, including a wireless charging transmission circuit module (1.0), a high-frequency alternating-current power transmission line (1.1) and a transmission coil module (1.2), wherein the wireless charging transmission circuit module (1.0) is installed in an energy conversion part shell (1.4), the transmission coil module (1.2) is installed in an energy transmission part shell (1.5), and the wireless charging transmission circuit module (1.0) is electrically connected to the transmission coil module (1.2) via the high-frequency alternating-current power transmission line (1.1), so that the energy of the wireless charging transmission circuit module (1.0) is transmitted to the transmission coil module (1.2) at a very high frequency. The wireless charging transmission device can reduce the heat amount in a wireless charging region and nearby regions significantly and make a wireless charger small in size and extremely thin.