| 摘要 |
<p>The present invention relates to the technical field of electronic devices. Disclosed are a parallel operation wire fault detection device and system, the device comprising a first detection module, a second detection module and a control module; the first detection module comprises a first resistor in serial connection between a first pin and a power supply, a first voltage change detection circuit connected with the first pin, and a first switch circuit; the output terminal of the first voltage change detection circuit is connected to the input terminal of the first switch circuit; the output terminal of the first switch circuit is provided with a first fault detection point; the second detection module comprises a second resistor in serial connection between a second pin and the ground; the output terminal of the second detection module is provided with a second fault detection point; and the control module sends an alarm signal according to the level state change of the first and the second fault detection points. The present invention detects the voltage change of the first and second pins, and controls the level states of the first and second fault detection points according to the voltage change, thus the fault parallel operation wire can be quickly and accurately detected.</p> |
