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    • 8. 发明授权
    • Current driver for electronic descaling
    • 电流除锈的当前驱动程序
    • US5725778A
    • 1998-03-10
    • US544156
    • 1995-10-17
    • Young I. ChoJoseph M. Evans, III
    • Young I. ChoJoseph M. Evans, III
    • C02F1/00C02F1/48
    • C02F1/485C02F1/001C02F2201/4614C02F2201/4617C02F2201/483C02F2303/22
    • An electronic descaling system to prevent or remove mineral deposits by exposing moving fluids to magnetic and electric fields includes an improved power supply. In particular, the power supply adapts to the varying length, diameter and impedance of attached coil and cable combinations, and still provides the proper current and power levels to effectuate electronic descaling. A constant current D.C. power supply having a regulated D.C. current output level is provided. The substantially constant D.C. current output is then switched in a switching circuit responsive to a switching control signal to provide a bi-directional current through the coil in one direction and then switched to conduct current through the coil in the other direction. The switching frequency of the switching control signal is time variable or constant. The present improved current driver adapts for such varying frequencies while providing a substantially constant D.C. current output level as the frequency of switching control signal varies. The descaling coil provides the proper induced electric and magnetic fields, and the resulting induced electromotive force, for different switching frequencies and for cables with varying lengths and coils with varying diameters.
    • 通过将移动流体暴露于磁场和电场来防止或去除矿物沉积的电子除垢系统包括改进的电源。 特别地,电源适应于连接的线圈和电缆组合的变化的长度,直径和阻抗,并且仍然提供适当的电流和功率水平来实现电子除垢。 提供具有稳定的直流电流输出电平的恒流DC电源。 然后基本上恒定的直流电流输出在开关电路中响应于开关控制信号切换,以在一个方向上提供穿过线圈的双向电流,然后切换以在另一个方向上传导通过线圈的电流。 开关控制信号的开关频率是时间可变或恒定的。 本改进的电流驱动器适应于这种变化的频率,同时当切换控制信号的频率变化时提供基本恒定的直流电流输出电平。 除锈线圈提供适当的感应电场和磁场,以及针对不同开关频率产生的感应电动势,以及具有不同长度的电缆和具有不同直径的线圈。