| 摘要 |
PURPOSE: To limit the change quantity of output-bus voltage change by parallel- connecting a first and a second power converters to a common load and using the saturation limit of an amplitude limiting amplifier. CONSTITUTION: A first and a second power converters 110, 210 are parallel- connected to a common load 301. An adjustment output voltage is provided so that the common load 301 is equally loaded to the respective power converters 110, 210. Particularly, the change of an output voltage achieved through current allotment control operation is limited. A voltage proportional to the unbalance of the currents of the parallel power converters 110, 210 is applied to the inputs of error amplifiers 161, 261 of the respective converters 110, 210 through amplitude limiting amplifiers 140, 240. An output bus voltage change quantity can be limited by the saturation limitation of the amplifiers 140, 240 and the resistance value for limiting the output current of the amplifiers 140, 240. |
