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    • 3. 发明申请
    • INVERTER WITH TIME COUNTING FUNCTION
    • 具有时间计数功能的逆变器
    • US20070201172A1
    • 2007-08-30
    • US11677831
    • 2007-02-22
    • Hiroaki HAYASHI
    • Hiroaki HAYASHI
    • H02H9/00
    • H02H7/122
    • The inverter according to the invention includes a control microcomputer including a protector circuit that stops the inverter when an anomaly is caused, a counter that counts the driving clock signals of the microcomputer from the instance at which the protector circuit starts working, and a conversion circuit that converts the clock signals counted by the counter to a numerical time expression in the time units and outputs the converted numerical time expression. The inverter according to the invention, manufacturable with low manufacturing costs and easy to operate, facilitates informing the installation manager of the period of time from the instance at which the inverter stopped due to an anomaly and such a cause, without impairing the time measurement precision.
    • 根据本发明的逆变器包括控制微计算机,该控制微型计算机包括当发生异常时停止逆变器的保护器电路,从保护电路开始工作的情况下对微型计算机的驱动时钟信号进行计数的计数器,以及转换电路 其将由计数器计数的时钟信号转换为时间单位中的数字时间表达式,并输出转换的数字时间表达式。 根据本发明的变频器,制造成本低且易于操作,便于安装经理从变频器由于异常等原因而停止的时间段,而不损害时间测量精度 。