FUEL CELL SYSTEM
PROBLEM TO BE SOLVED: To provide a fuel cell system capable of properly operating a control circuit (ASIC) through stepping down of a voltage, by achieving cost saving through introduction of the control circuit (ASIC) as a device for measuring performance differences of unit cells and separately pr...
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| creator | KIM DONG RAK ICHISE TOSHIHIKO KIM HYUN |
| description | PROBLEM TO BE SOLVED: To provide a fuel cell system capable of properly operating a control circuit (ASIC) through stepping down of a voltage, by achieving cost saving through introduction of the control circuit (ASIC) as a device for measuring performance differences of unit cells and separately providing a power supply device for driving the control circuit (ASIC). SOLUTION: The system includes a fuel cell stack 10 containing a plurality of unit cells, control circuits 20, 30, 40 connected to the plurality of unit cells for measuring each voltage of a corresponding optional plural number of the plurality of cells with supply of power supply voltage and reference voltage from the optional plural number of unit cells out of the plurality of unit cells, and constant voltage generating parts 50, 60, 70 for supplying the control circuits with the constant voltage higher than the power supply voltage by a floating voltage. A voltage difference deducting the reference voltage from the constant voltage is to be one necessary for operation of at least the control circuits. COPYRIGHT: (C)2010,JPO&INPIT |
| format | Patent |
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SOLUTION: The system includes a fuel cell stack 10 containing a plurality of unit cells, control circuits 20, 30, 40 connected to the plurality of unit cells for measuring each voltage of a corresponding optional plural number of the plurality of cells with supply of power supply voltage and reference voltage from the optional plural number of unit cells out of the plurality of unit cells, and constant voltage generating parts 50, 60, 70 for supplying the control circuits with the constant voltage higher than the power supply voltage by a floating voltage. A voltage difference deducting the reference voltage from the constant voltage is to be one necessary for operation of at least the control circuits. 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SOLUTION: The system includes a fuel cell stack 10 containing a plurality of unit cells, control circuits 20, 30, 40 connected to the plurality of unit cells for measuring each voltage of a corresponding optional plural number of the plurality of cells with supply of power supply voltage and reference voltage from the optional plural number of unit cells out of the plurality of unit cells, and constant voltage generating parts 50, 60, 70 for supplying the control circuits with the constant voltage higher than the power supply voltage by a floating voltage. A voltage difference deducting the reference voltage from the constant voltage is to be one necessary for operation of at least the control circuits. 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SOLUTION: The system includes a fuel cell stack 10 containing a plurality of unit cells, control circuits 20, 30, 40 connected to the plurality of unit cells for measuring each voltage of a corresponding optional plural number of the plurality of cells with supply of power supply voltage and reference voltage from the optional plural number of unit cells out of the plurality of unit cells, and constant voltage generating parts 50, 60, 70 for supplying the control circuits with the constant voltage higher than the power supply voltage by a floating voltage. A voltage difference deducting the reference voltage from the constant voltage is to be one necessary for operation of at least the control circuits. COPYRIGHT: (C)2010,JPO&INPIT</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | BASIC ELECTRIC ELEMENTS ELECTRICITY GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TESTING |
| title | FUEL CELL SYSTEM |
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