System and method for measuring fuel cell voltage
US8030941B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 29, 2005 |
| Grant date | Oct 4, 2011 |
| Priority date | — |
| Expiry date | Dec 4, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldMeasurement
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.