| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a charger that achieves parallel-operation integration and distributed control and eliminates a risk of overcharge or insufficient charge occurring due to charging to a battery by connecting a large number of charging modules in parallel while allowing all charging modules to be uniformly operated without signal transmission between charging modules. <P>SOLUTION: The charger is configured by connecting a large number of charging modules in parallel. The charging module includes a rectification part for converting input into DC power supply, a power conversion part for switching power supply to be input thereinto so as to step down the power supply, a switching control part for controlling the switching, a DC current part for converting the switched power supply into DC power supply so as to supply the DC power supply to a battery, a detection part for detecting an output voltage and a current of the DC current part, and a calculation control part that performs calculation, receiving feedback of the voltage and current detected by the detection part and transmits a control signal, which allows the DC current part to sequentially supply a primary constant current, a constant voltage, and a secondary constant current to the battery, to the switching control part. <P>COPYRIGHT: (C)2009,JPO&INPIT |
