| 摘要 |
The invention includes, in one embodiment, a system for monitoring a plurality of cell voltages of an electrochemical device for a plurality of cells connected in series, the system including: a plurality of connecting pins for removable connection across the plurality of cells; a plurality of differential amplifiers, each differential amplifier having a plurality of laser wafer trimmed resistors providing matching, so that common mode signals are rejected, while differential input signals are amplified, each differential amplifier having two inputs and one output, where the inputs are each connected to the plurality of connecting pins; a switching network having a plurality of inputs and one output, the inputs of the switching network connected to the outputs of the differential amplifiers; not more than one analog to digital converter per 16 cells having an input connected to the output of the switching network and adapted to provide digital values indicative of the voltages measured by the plurality of differential amplifiers; and a power supply to supply regulated power to at least one electrical circuit consisting of the differential amplifiers, switching network, and mixtures thereof, where the power supply derives its power from the plurality of cells.
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