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    • 4. 发明申请
    • WIRELESS CHARGING SYSTEM
    • 无线充电系统
    • US20130082649A1
    • 2013-04-04
    • US13619857
    • 2012-09-14
    • Hyun Seok LEEYoung Seok YOONSam Ki JUNGEung Ju KIM
    • Hyun Seok LEEYoung Seok YOONSam Ki JUNGEung Ju KIM
    • H02J7/00
    • H02J7/025H02J17/00H02J50/10H02J50/90
    • Disclosed herein is a wireless charging system that includes a transmission device including a primary coil and a reception device including a secondary coil, wherein the transmission device detects an input signal provided from the primary coil to generate an output signal in the form of a pulse, and compares the level of the generated output signal with a reference voltage to generate a detection signal for determining the presence or absence of the reception device. The wireless charging system does not require an analog-to-digital converter (ADC), eliminating the necessity of using an ADC chip or a high-priced control circuit including an ADC block, thus reducing a material cost of the system. In addition, since the wireless charging system does not require a software algorithm for processing an ADC signal, the performance can be improved.
    • 这里公开了一种无线充电系统,其包括包括初级线圈和包括次级线圈的接收装置的发送装置,其中,所述发送装置检测从所述初级线圈提供的输入信号以产生脉冲形式的输出信号, 并且将生成的输出信号的电平与参考电压进行比较,以产生用于确定接收装置的存在或不存在的检测信号。 无线充电系统不需要模数转换器(ADC),无需使用ADC芯片或包含ADC模块的高价控制电路,从而降低了系统的材料成本。 此外,由于无线充电系统不需要用于处理ADC信号的软件算法,所以可以提高性能。
    • 5. 发明申请
    • Low-Power Wireless Charging Apparatus And Method Thereof
    • 低功率无线充电装置及其方法
    • US20130082647A1
    • 2013-04-04
    • US13607422
    • 2012-09-07
    • Young Seok YOONEung Ju KIM
    • Young Seok YOONEung Ju KIM
    • H02J7/00
    • H02J50/90H02J5/005H02J7/025H02J50/10H02J50/40H02J50/80
    • Disclosed herein is a low-power wireless charging apparatus including: a plurality of primary coils corresponding to a plurality of receivers, respectively; a plurality of drivers periodically and sequentially transmitting receiver detect signals; a sensing unit detecting a current and a voltage according to a magnetic field changed by one or more of the plurality of primary coils; a comparator comparing the detected current and voltage with pre-set values; a low-power auxiliary control unit generating a wake-up signal when one or more receivers are present; and a main control unit turned on upon receiving the wake-up signal, and controlled to generate a wireless power signal for charging a corresponding receiver and transmit, whereby unnecessary power consumption can be prevented and the burden of the main control unit can be lessened, thus increasing efficiency.
    • 这里公开了一种低功率无线充电装置,包括:分别对应于多个接收器的多个初级线圈; 多个驱动器周期性地并顺序地发送接收机检测信号; 感测单元,根据由所述多个初级线圈中的一个或多个所改变的磁场检测电流和电压; 比较检测到的电流和电压与预设值的比较器; 当存在一个或多个接收器时产生唤醒信号的低功率辅助控制单元; 并且主控制单元在接收到唤醒信号时导通,并且被控制以产生用于对相应的接收器进行充电的无线电力信号并进行发送,由此可以防止不必要的功率消耗并且可以减轻主控制单元的负担, 从而提高效率。