Data collecting system of battery pack
A data acquisition system and data acquisition technology, applied in the direction of measuring electricity, measuring electrical variables, measuring devices, etc., can solve the problem of not being able to meet higher precision requirements, affecting the speed of collection, and not being able to represent the real state of a battery pack or a single battery, etc. problem, to achieve the effect of comprehensive performance evaluation
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Embodiment 1
[0041] The PWM module of the central processor of the power acquisition unit regularly releases the pulse signal, which is used as a synchronous sampling signal after isolation. The central processor detects the signal and starts the detection of the total voltage and charge and discharge current. After the processor detects the synchronous sampling signal, it starts the monomer voltage detection. After all the data is uploaded to the system communication bus, the central processor of the power acquisition unit sends the synchronous sampling signal again to meet the synchronization requirement. The monomer voltage detection unit uses a 16-bit ADC chip, and the error of the detection result is 0.1% within the range of 0-5V. The entire set of voltage detection application program-controlled amplifier PGA103, the optional gain is 1, 10, 100.
Embodiment 2
[0043] Except that a 16-bit ADC chip is used to collect in the range of 0-500V, other steps are the same as in Embodiment 1. The test result has an error of 0.3%.
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