Abstract: An uninterruptible power system and a power control system thereof are disclosed. The power control system includes the uninterruptible power system and a computer system. The uninterruptible power system supplies power to the computer system and includes an external power adaptor, a battery module, a first switch module, a second switch module, and a switching control module. When external power is input, the external power is transmitted to the computer system via the external power adaptor. When the external power is not input, the first switch module switches automatically to supply a backup power signal from the battery module to the computer system. When the external power is not input and a control signal is not received from the computer system, the switching control module controls the second switch module to electrically disconnect a connection between the computer system and the battery module.

Abstract: An uninterruptible power system and a power control system thereof are disclosed. The power control system includes the uninterruptible power system and a computer system. The uninterruptible power system supplies power to the computer system and includes an external power adaptor, a battery module, a first switch module, a second switch module, and a switching control module. When external power is input, the external power is transmitted to the computer system via the external power adaptor. When the external power is not input, the first switch. module switches automatically to supply a backup power signal from the battery module to the computer system. When the external power is not input and a control signal is not received from the computer system, the switching control module controls the second switch module to electrically disconnect a connection between the computer system and the battery module.

Abstract: A computer system includes a main power, a backup power, an input/output (I/O) board, a main board, a computer host, and controls signal transmission and signal detection with a control device. The control device controls the main power and the backup power according to a power status. When one of the main power or the backup power fails, the control device controls the other functioning power to supply power to the I/O board and the main board and prevents the computer system from shutting down.

Abstract: A computer system includes a main power, a backup power, an input/output (I/O) board, a main board, a computer host, and controls signal transmission and signal detection with a control device. The control device controls the main power and the backup power according to a power status. When one of the main power or the backup power fails, the control device controls the other functioning power to supply power to the I/O board and the main board and prevents the computer system from shutting down.