A charger that generates alternating current voltage using an inverter and generates direct current voltage for charging a storage battery by rectifying the alternating current voltage, wherein the charger comprises a plurality of switching elements configuring the inverter; the charger is characterized by further comprising: a plurality of transformers (101, 102, 103, 104, 105, 106), wherein each transformer of the plurality of transformers comprises a primary winding and a secondary winding, wherein each transformer of the plurality of transformers corresponds to one of the plurality of switching elements (41, 42, 43, 44, 45, 46), respectively; wherein the charger further comprises a control circuit that outputs a plurality of gate signals, for carrying out switching on and off of the plurality of switching elements (41, 42, 43, 44, 45, 46) of the inverter, to a plurality of primary side circuits, each of which includes the primary winding of one of the plurality of transformers (101, 102, 103, 104, 105, 106); a plurality of gate drive circuits (111, 112, 113, 114, 115, 116) that carry out switching on and off of the plurality of switching elements (41, 42, 43, 44, 45, 46) of the inverter, wherein each switching element of the plurality of switching elements (41, 42, 43, 44, 45, 46) is switched on and off based on voltage generated in the secondary winding of the respective transformer of the plurality of transformers (101, 102, 103, 104, 105, 106); and an interruption control switching element (91, 92, 93, 94, 95, 96) that carries out opening and closing of the primary side circuit of each of the plurality of transformers (101, 102, 103, 104, 105, 106), wherein the interruption control switching element (91, 92, 93, 94, 95, 96) is cut off in accordance with a forced stop signal (DIS1, DIS2), whereby the primary side circuit of each of the plurality of transformers (101, 102, 103, 104, 105, 106) is switched to an open state. a plurality of transformers (101, 102, 103, 104, 105, 106), wherein each transformer of the plurality of transformers comprises a primary winding and a secondary winding, wherein each transformer of the plurality of transformers corresponds to one of the plurality of switching elements (41, 42, 43, 44, 45, 46), respectively; wherein the charger further comprises a control circuit that outputs a plurality of gate signals, for carrying out switching on and off of the plurality of switching elements (41, 42, 43, 44, 45, 46) of the inverter, to a plurality of primary side circuits, each of which includes the primary winding of one of the plurality of transformers (101, 102, 103, 104, 105, 106); a plurality of gate drive circuits (111, 112, 113, 114, 115, 116) that carry out switching on and off of the plurality of switching elements (41, 42, 43, 44, 45, 46) of the inverter, wherein each switching element of the plurality of switching elements (41, 42, 43, 44, 45, 46) is switched on and off based on voltage generated in the secondary winding of the respective transformer of the plurality of transformers (101, 102, 103, 104, 105, 106); and an interruption control switching element (91, 92, 93, 94, 95, 96) that carries out opening and closing of the primary side circuit of each of the plurality of transformers (101, 102, 103, 104, 105, 106), wherein the interruption control switching element (91, 92, 93, 94, 95, 96) is cut off in accordance with a forced stop signal (DIS1, DIS2), whereby the primary side circuit of each of the plurality of transformers (101, 102, 103, 104, 105, 106) is switched to an open state.