Abstract: A voltage at an output end of a switch of an electric vehicle supply equipment is detected before charging an electric vehicle. An earth leakage circuit breaker is tripped for cutting off power inputted to the switch and preventing the output end from outputting the power when the voltage is higher than a first predetermined value. The switch is turned on for outputting the power from the output end to charge the electric vehicle when the voltage is lower than the first predetermined value. A current is detected at the output end. Power inputted to the switch is cut off for preventing the output end from outputting the power when the current is higher than a second predetermined value.

Abstract: A voltage at an output end of a switch of an electric vehicle supply equipment is detected before charging an electric vehicle. An earth leakage circuit breaker is tripped for cutting off power inputted to the switch and preventing the output end from outputting the power when the voltage is higher than a first predetermined value. The switch is turned on for outputting the power from the output end to charge the electric vehicle when the voltage is lower than the first predetermined value. A current is detected at the output end. Power inputted to the switch is cut off for preventing the output end from outputting the power when the current is higher than a second predetermined value.

Abstract: A data auto backup system and method is proposed, applicable in a computer system connected with an external storage device for backing up data of the external storage device to the computer system during a power-off state of the computer system. The computer system includes a bus interface, a storage module, an input/output interface, and a power module. The data auto backup system includes: an input unit for inputting a predefined signal; a memory unit for storing a backup program; a detection unit for detecting whether the external storage device is connected with the bus interface and generating a corresponding signal; a processing unit for receiving and processing the corresponding signal so as to generate a first driving signal, and executing the backup program according to the predefined signal so as to generate a second driving signal; and a control unit for receiving the first and second driving signals.

Abstract: A data auto backup system and method is proposed, applicable in a computer system connected with an external storage device for backing up data of the external storage device to the computer system during a power-off state of the computer system. The computer system includes a bus interface, a storage module, an input/output interface, and a power module. The data auto backup system includes: an input unit for inputting a predefined signal; a memory unit for storing a backup program; a detection unit for detecting whether the external storage device is connected with the bus interface and generating a corresponding signal; a processing unit for receiving and processing the corresponding signal so as to generate a first driving signal, and executing the backup program according to the predefined signal so as to generate a second driving signal; and a control unit for receiving the first and second driving signals.