| 摘要 |
With a measuring device ( 1 ) for determining a voltage of at least one battery cell ( 14 ) in a battery ( 15 ), it is provided in order to achieve a precise, highly accurate measurement, that a voltage which is applied to an integration circuit ( 2 ) is integrated up and in a first and a second comparator circuit ( 4, 5 ) is compared with a first and a second comparator threshold value. The time span between the emission of a first and a second switching value is measured using a measuring and evaluation unit ( 6 ). In addition, a reference voltage source ( 3 ) is provided in order to specify a reference voltage. Due to the fact that in two integration procedures in sequence, a voltage which comprises the reference voltage and a voltage which comprises the voltage of a battery cell ( 14 ) to be determined is integrated up, the unknown voltage of the battery cell ( 14 ) can be precisely determined by comparing the two integration procedures. Additionally, a procedure for determining the voltage of a battery cell ( 14 ) using a measuring device ( 1 ) according to the invention is given.
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