| 摘要 |
A voltage detecting device applied to a driving device of a light-emitting diode device is provided. The detecting device includes a voltage inspecting device, an isolating/connecting control device and a comparing device. The voltage inspecting device is coupled to an output terminal of the driving device to inspect a status of an output voltage of the driving device and outputs an inspecting signal. The isolating/connecting control device, coupled between the voltage inspecting device and the driving device, isolates or connects the output terminal of the driving device according to the inspecting signal. The comparing device, composed of low voltage elements, is coupled to the isolating/connecting control device, and compares the output voltage of the driving device with a reference voltage and generates a detecting signal according to the comparing result.
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