Electricity: measuring and testing – Electrolyte properties – Using a battery testing device
Reexamination Certificate
2005-11-29
2011-10-04
Diao, M'Baye (Department: 2858)
Electricity: measuring and testing
Electrolyte properties
Using a battery testing device
C320S116000
Reexamination Certificate
active
08030941
ABSTRACT:
A system for measuring individual cell voltages of a fuel cell stack includes a plurality of voltage scanning units (VSU). Each VSU is arranged for being connected to a group of cells, belonging to the fuel cell stack, the group of cells being provided with terminals that allow measuring a cell voltage. Each VSU comprises a filter/regulator that provides a voltage reference signal Vref, that is applied to a first terminal of a first cell of the group of cells. The VSU further includes a multiplexer arranged for consecutively connecting the other terminals of the group of cells to a first input of an A/D converter, whereby the A/D converter is further provided with a second input for receiving the voltage reference signal Vref. The ADC is further arranged for being fed with a supply voltage Vsup+and for A/D converting a signal derived from the signals at the first and second input.
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Diao M'Baye
Merchant & Gould P.C.
Vlaamse Instelling Voor Technologisch Onderzoek (Vito)
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