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    • 2. 发明申请
    • INDUCTION COOKTOP PAN SENSING
    • 感应厨房感光
    • US20120305546A1
    • 2012-12-06
    • US13154190
    • 2011-06-06
    • Mariano Pablo FILIPPADaniel Vincent BROSNAN
    • Mariano Pablo FILIPPADaniel Vincent BROSNAN
    • H05B6/04
    • H05B6/062H05B2213/05
    • An induction heating system includes a heating coil operable to inductively heat a load with a magnetic field, a variable high frequency power source supplying a high frequency current to the heating coil, a detector for detecting a current through the coil and providing a current signal representative of the current, a controller for controlling the frequency of the current to the heating coil and responsive to the current signal from the detector to capture and analyze a current signature, the controller being operative to sweep a current operating frequency across an operating frequency spectrum, and to combine a sum of the current signature with a two-sample swing of the current signature, and determine a presence of a load on the heating coil and control the frequency of the current to the coil based on a signal resulting from the combined signal.
    • 一种感应加热系统包括一个加热线圈,其可操作地用磁场感应加热负载,向加热线圈提供高频电流的可变高频电源;检测器,用于检测通过线圈的电流,并提供电流信号代表 电流控制器,用于控制到加热线圈的电流的频率,并且响应于来自检测器的当前信号来捕获和分析当前签名,控制器可操作以扫过工作频谱上的当前工作频率, 并且将当前签名的和与当前签名的双样本摆幅组合,并且基于由组合信号产生的信号来确定加热线圈上的负载的存在并控制到线圈的电流的频率 。