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PROTECTION CIRCUIT FOR BATTERY PACK

  • US 20110156654A1
  • Filed: 12/03/2010
  • Published: 06/30/2011
  • Est. Priority Date: 12/29/2009
  • Status: Active Grant
First Claim
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1. A protection circuit of a battery pack having a battery cell charged by a charging device, the protection circuit comprising:

  • a charge switch coupled to a high current path (HCP), the charge switch disposed between the battery cell and the charging device charging the battery cell; and

    a controller sensing a voltage or a current of the charging device during a charge stop period stopping a charging of the battery cell and determining whether an error of the charging device occurs according to the voltage or the current of the charging device.

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