The monitoring (ISO122P/124, INA105) circuit diagram of battery system

Published:2011/5/17 3:23:00 Author:Ecco | Keyword: monitoring , battery system | From:SeekIC

The 600V monitoring (ISO122P/124, INA105) circuit diagram of battery system composed of ISO122P/124 and instrumentation amplifier INA105, multi-route selector is shown as the chart. Circuit can detect the charging and discharging 50 pieces of 12V batteries connected in series ( the total voltage is 600V) to prevent over charge or over discharge. The input voltage of ISO122P/124 is e / 2 voltage got by the two ends of a single 12V battery divided by two 10kΩ, and it is isolated, amplified and sent to INA105. INA105 is connected as an inverting amplifier gain, it outputs e / 2 to the multiplexer, the multiplexer would controll the selection of output.



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