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    • 5. 发明授权
    • Load control apparatus and method for processing diagnosis signal for the same
    • 用于处理诊断信号的负载控制装置和方法相同
    • US08044624B2
    • 2011-10-25
    • US12153281
    • 2008-05-15
    • Yosuke MatsuoShigeru TakeuchiTaketoshi Sato
    • Yosuke MatsuoShigeru TakeuchiTaketoshi Sato
    • H02P1/04
    • F02D41/3082F02D41/221H02P7/29H02P29/02
    • A load control apparatus outputs a PWM signal to a switching element to control a load. The switching element is connected between a power supply and a grand in series with the load. An abnormal increase detecting unit outputs an abnormal increase detection signal when detecting abnormal increase in applied voltage, which is applied to the load, relative to target voltage. An abnormal decrease detecting unit outputs an abnormal decrease detection signal when detecting abnormal decrease in the applied voltage relative to the target voltage. An operating state monitoring unit outputs a normally operating signal when the load normally operates. A signal combining unit generates a combined signal by combining the abnormal increase detection signal, the abnormal decrease detection signal, and the normally operating signal and outputs the combined signal via a common signal output terminal.
    • 负载控制装置向开关元件输出PWM信号以控制负载。 开关元件连接在电源和与负载串联的电源之间。 当检测到相对于目标电压施加到负载的施加电压的异常增加时,异常增加检测单元输出异常增加检测信号。 当检测到相对于目标电压的施加电压的异常降低时,异常下降检测单元输出异常降低检测信号。 操作状态监控单元在负载正常运行时输出正常工作信号。 信号组合单元通过组合异常增加检测信号,异常降低检测信号和正常操作信号来产生组合信号,并经由公共信号输出端输出组合信号。