Contactless multi-charger system and controlling method thereof

Abstract

The invention discloses a wireless multi-charger system capable of saving the total charging time of a large number of wireless power transmission devices since one wireless multi-power transmission device includes a plurality of the wireless power transmission devices so that a large number of the wireless power transmission devices can be charged with electricity, and preventing the damage of the wireless power transmission devices and the wireless multi-power transmission device although foreign substances are put on charger blocks that are not charged. The wireless multi-charger system (A) according to the present invention includes an external body formed as a wireless charger case (11), wherein the wireless charger case has a wireless charger table (12) formed in an upper surface thereof, wherein the wireless charger table has a plurality of charger blocks (14), each of which includes a primary charging core (13), wherein the full-bridge resonant converter is present in a plural form and coupled respectively to a plurality of the charger blocks, wherein a multi-gate driver module is provided to transmit a converted power signal to each of a plurality of the full-bridge resonant converters under the control of the central controller, and wherein a reception signal processor module is coupled to a plurality of the charger blocks for processing a signal transmitted from the wireless power transmission device (30) and supplies the processed signal to the central controller.

Description

technical field [0001] The present invention relates in particular to a wireless charger system, and more particularly to a wireless multi-charger system capable of saving the total charging time of a large number of wireless power transmission devices. Charge a plurality of wireless power transmission devices and prevent damage to the wireless power transmission device and the wireless multi-power transmission device even when there is a foreign object on a charger block that is not being charged. Background technique [0002] Generally, since the user uses the portable wireless power transmission device while moving, the common portable wireless power transmission device, such as a mobile phone, PDA, PMP, DMB terminal, MP3 or notebook computer, does not provide a traditional household power supply. Therefore, there is a need to install removable batteries or rechargeable batteries in portable wireless power transfer devices. [0003] However, as a charger for charging the...

AI Technical Summary

Problems solved by technology

[0005] However, these conventional wireless chargers are not practical since they can only supply power to portable terminal modules, and they are also difficult to use for other applications

[0006] Also, the wireless charger

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