| 摘要 |
An inverter circuit device for a welder according to one embodiment of the present invention comprises: first and second rectifying units connected to the respective input power sources to receive alternating current power from the input power sources and convert the received alternating current power into direct current power; first and second charging/discharging units which are charged with the respective direct current power output from the first and second rectifying units, and which discharge the charged direct current power to drive the welder; first and second trigger switch units which switch on/off the operations of the first and second charging/discharging units; and a control unit which controls the first and second trigger switch units and the first and second charging/discharging units, such that the first and second trigger switch units perform on/off operations alternately, and the first and second charging/discharging units perform charging/discharging operations alternately. |
