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    • 56. 发明授权
    • Laundry dryer
    • 洗衣机
    • US06822201B2
    • 2004-11-23
    • US10717991
    • 2003-11-21
    • Sang Ho Park
    • Sang Ho Park
    • H05B102
    • D06F58/28D06F2058/2854
    • A laundry drier has a heater control circuit for controlling the drive of a heater using one of a plurality of high voltages, using a switching circuit realized by a form C contact relay provided between a current-buffered microcomputer output and plurality of heater drivers, so that heater drive capability is ensured even if the current buffer output fails and so that dangerous short-circuit conditions are avoided even if the microcomputer experiences a logical malfunction. The heater control circuit includes a heater for being driven by a plurality of high voltages via a plurality of heater drivers; a microcomputer for outputting a control signal according to a user input, the control signal determining the high voltage drive of the heater; and a heater control interface for generating a plurality of heater control signals corresponding to the plurality of high voltages, based on the control signal of the microcomputer, the plurality of heater control signals selectively enabling only one heater driver.
    • 洗衣干燥机具有加热器控制电路,其使用由电流缓冲微计算机输出和多个加热器驱动器之间的形式C接触继电器实现的切换电路,使用多个高电压中的一个来控制加热器的驱动,因此 即使当前缓冲器输出故障,也能保证加热器驱动能力,并且即使微计算机经历了逻辑故障,也避免了危险的短路条件。 加热器控制电路包括通过多个加热器驱动器被多个高电压驱动的加热器; 用于根据用户输入输出控制信号的微型计算机,所述控制信号确定所述加热器的高电压驱动; 以及加热器控制接口,用于基于微型计算机的控制信号产生与多个高电压对应的多个加热器控制信号,所述多个加热器控制信号选择性地只使能一个加热器驱动器。