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Drive current detection device, drive current detection method, failure detection device, and failure detection method for PWM load equipment
Drive current detection device, drive current detection method, failure detection device, and failure detection method for PWM load equipment
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机译:PWM负载设备的驱动电流检测装置,驱动电流检测方法,故障检测装置以及故障检测方法
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摘要
It is an object of the invention to, in fault detection of a PWM load device, provide a fault detection device and a fault detection method, which are capable of appropriately detecting fault of the load device in the case where such load device is connected the duty ratio of the PWM waveform of which is different, or where such load device is connected the magnitude of current of which is different. The fault detection device samples a current flowing through the load device on a predetermined cycle, decides, based on sampled values, a current-driven period and decides, by using sampled values in the current-driven period, a drive current value for determining whether or not there is a fault.
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