| 摘要 |
PURPOSE:To uniformize the share of a load by detecting the output current of a device having a plurality of AC/DC or DC/DC conversion units connected in parallel, instructing the share of the units by a microprocessor, and providing a current limiter. CONSTITUTION:The inputs a1-a3 and outputs b1-b3 of 3 AC/DC or DC/DC conversion units M1-M3 are commonly connected to inputs A, and outputs B respectively. The signal of an output current from a general current detector C of output side is input to the terminal R of a load sharing instruction unit LS. Operation state signals are inputted from the terminals FA1-FA3 of the units M1-M3 to the terminals P1-P3 of the unit LS. A load sharing command is applied from the terminal LA of the unit LS to the terminals L1-L3 of current limiters LM1-LM3 contained in the units M1-M3. A monitor controller monitors the state of the load and adds the unit when it exceeds the rated value of the unit. Thus, the loads are uniformly and safety shared to alleviate the load of an operator. |
