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Apparatus and method of charging rechargeable battery

  • US 9,225,192 B2
  • Filed: 04/24/2013
  • Issued: 12/29/2015
  • Est. Priority Date: 09/26/2012
  • Status: Active Grant
First Claim
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1. A charging apparatus comprising:

  • a voltage detector which detects a voltage value between terminals of a rechargeable battery;

    a current generator which generates currents for charging the rechargeable battery and outputs the generated currents to the terminals of the rechargeable battery; and

    a controller which controls the current generator based on the voltage value detected by the voltage detector,wherein the current generator outputsa first current for which a direction thereof between the terminals of the rechargeable battery is constant, in a charging period of the rechargeable battery, wherein the first current comprises direct current, anda second current for which a direction thereof between the terminals of the rechargeable battery is periodically reversed without a discharge pulse, in an intermittent period of the rechargeable battery.

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