ELECTRONIC DEVICE

摘要

An electronic device is powered by a first power supply and connected to an external device powered by a second power supply. The electronic device comprises a master controller, a conversion module, and a detection module. The master controller outputs first information. The conversion module converts the first information into second information based on a first voltage from the first power supply and a second voltage from the second power supply to control the external device to execute corresponding functions. The detection module is connected with the first power supply and the conversion module, and generates a pull-up voltage when the voltage of the second power supply is in an abnormal state. The conversion module further converts the first information into a second information based on the voltage of the first power supply and the pull-up voltage. The pull-up voltage is larger than the first voltage.

主权项

1. An electronic device powered by a first power supply connected to an external device powered by a second power supply, comprising:
a master controller capable of outputting first information; a conversion module capable of converting the first information into second information based on a first voltage from the first power supply and a second voltage from the second power supply for controlling the external device to execute corresponding functions; and a detection module connected with the first power supply and the conversion module; wherein when the voltage of the second power supply is in an abnormal state, the detection module generates a pull-up voltage, the conversion module converts the first information into a second information based on the voltage of the first power supply and the pull-up voltage, the pull-up voltage is larger than the first voltage.