UPS MODULE AND UPS MODULE CONTROL METHOD

The present disclosure comprises an alternating current-to-direct current converter for converting a commercial power current; a direct current-to-direct current converter for converting a battery current; a common output end at which the output end of the alternating current-to-direct current converter and the output end of the direct current-to-direct current converter are connected through a link capacitor having a preset bus voltage; a first circuit breaking part for opening or closing the current path between the common output end and a load; a second circuit breaking part for opening or closing the current path between the commercial power and the alternating current-to-direct current converter; a third circuit breaking part for opening or closing the current path between the battery and the direct current-to-direct current converter; and a control unit.