For balancing the circuit of the charging of the battery unit be connected in series

For balancing the circuit of the charging of the battery unit be connected in series

  • CN 102,668,308 B
  • Filed: 10/21/2010
  • Issued: 03/16/2016
  • Est. Priority Date: 10/21/2009
  • Status: Active Grant
First Claim
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1. , for preventing the circuit overcharged to battery unit, it comprises:

  • Voltage detector, it is for monitoring the voltage across battery unit, and described voltage detector is configured to determine when the described voltage across described battery unit is greater than first threshold voltage;

    Electronic switch, it responds to described voltage detector and is configured to determine that described battery cell voltage makes the current distributing around described battery unit when being greater than described first threshold voltage at described voltage detector, wherein said electronic switch comprises the MOSFET semiconductor device being coupling in battery unit two ends, described MOSFET semiconductor device has intrinsic diode characteristic, for making current distributing when battery unit is reversed connection by MOSFET semiconductor device;

    Semiconductor device, its voltage detecting input across described voltage detector is coupled, described semiconductor device be suitable for described battery unit reversed polarity be connected to described voltage detector time make across described voltage detector the shunting of described voltage detecting input;

    AndIndicating device, for detecting the electric current shunted by MOSFET semiconductor device and thus being connected to described voltage detector with indicating described battery unit reversed polarity.

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