Patent ID: 9244509
Filing Date: 2016-01-26
CPC Classification: G06F

Claim Text:
1. An uninterruptible power system which is connected to a power supply terminal for providing power to a computer system, the uninterruptible power system comprising: an external power port electrically connected to the power supply terminal for receiving an external power signal; a charging module electrically connected to the external power port for receiving the external power signal from the external power port; a battery module used for providing a backup power signal and electrically connected to the charging module, wherein the charging module is used for charging the battery module when receiving the external power signal; a first switch module electrically connected to the external power port, the battery module, and the computer system, wherein when the external power signal is input, the external power signal is transmitted from the external power port to the computer system via the first switch module; when the external power signal is not input, the first switch module switches automatically to enable the battery module to be electrically connected to the computer system for providing the backup power signal to the computer system; a second switch module electrically connected to the computer system and connected to the external power port or the battery module via the first switch module; and a switching control module electrically connected to the external power port, the computer system, and the second switch module, wherein when the external power signal 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, wherein the switching control module comprises: wherein the second switch module is electrically connected to the first transistor and the second transistor; if the second switch module does not receive the first confirmation signal from the first transistor and does not receive the second confirmation signal from the second transistor, the second switch module electrically disconnects the connection between the computer system and the battery module.