| 摘要 |
<P>PROBLEM TO BE SOLVED: To save a cost about a voltage monitoring system of a fuel cell. <P>SOLUTION: The voltage monitoring system 20 of a fuel cell stack in which a plurality of fuel cells C1-FC12 is laminated, is provided with the plurality of the fuel cells FC-FC12 in each of blocks B1-B3 which are divided into two or more pieces. The voltage monitoring system 20 comprises detection circuits 130, 230 and 330 detecting and outputting the minimum value of the voltage of each fuel cell belonging to the blocks B1-B3, power supply circuits 148, 248 and 348 intermittently supplying power to the detection circuits 130, 230 and 330 during the operation of the fuel cell stack, and a specifying circuit 92 specifying the minimum value of the voltage of the plurality of the fuel cells FC1-FC12 on the basis of the output of the detection circuits 130, 230 and 330. <P>COPYRIGHT: (C)2012,JPO&INPIT |
