Voltage measurement device for plurality of assembled batteries

Voltage measurement device for plurality of assembled batteries

  • CN 103,154,749 A
  • Filed: 10/12/2011
  • Published: 06/12/2013
  • Est. Priority Date: 10/14/2010
  • Status: Active Application
First Claim
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1. voltage measuring apparatus, this voltage measuring apparatus are used for measuring the output voltage of each element cell of a plurality of batteries, and these a plurality of batteries are connected in series a plurality of element cells to export required voltage, and described voltage measuring apparatus comprises:

  • Voltage-level detector, each block of a plurality of blocks that are divided into for described a plurality of element cells arranges this voltage-level detector, and this voltage-level detector is configured to;

    detect each cell voltage in described block;

    AndCharged state monitoring part, this charged state monitoring partial configuration becomes the described cell voltage that detects according to by described voltage-level detector, monitors the charged state of each cell voltage,Each described voltage-level detector comprises;

    Communications portion, this communications portion are configured to data are sent to described charged state monitoring part and monitor the part receive data from described charged state;

    Reference voltage generator, this reference voltage generator has the series circuit of resistor and at least one diode, and this reference voltage generator is configured to;

    when voltage was applied to described series circuit two ends, output was at the reference voltage of described diode two ends generation;

    AndA/D converter, this A/D converter is configured to;

    with output voltage and the described reference voltage digitizing of each element cell,Described communications portion sends to described charged state monitoring part with described digitized voltage signal,Described charged state monitoring part comprises;

    The theoretical value maker, this theoretical value maker is configured to;

    according to environment temperature, be created on the theoretical voltage of described diode two ends generation;

    AndError detector, this error detector is configured to;

    the described digitized voltage signal of the described reference voltage that will send from described voltage-level detector is compared with described theoretical value, and according to this result relatively, detect by the error in the digitized described voltage signal of described A/D converter.

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