| 摘要 |
A welding power supply includes a switching type power converter. A welding electrode is connected to the power converter to receive electrical energy therefrom and produce an electric arc. An engine-generator is connected to the welding power supply to supply electrical energy for producing the arc. The engine-generator comprises a plurality of armature windings, and a field winding. A battery is connected to the welding power supply to simultaneously supply further electrical energy for producing the arc, and to receive electrical energy from the engine-generator through the power supply to recharge the battery. A sensor senses battery voltage and/or current, and outputs a signal during recharging corresponding to the battery voltage and/or current. A field controller is connected to the field winding and to the sensor. The field controller receives the signal from the sensor and automatically adjusts a level of current flow through the field winding during recharging based on the signal from the sensor. |
