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CHARGING DEVICE

  • US 20130308230A1
  • Filed: 05/21/2013
  • Published: 11/21/2013
  • Est. Priority Date: 05/21/2012
  • Status: Active Grant
First Claim
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1. A charging device for charging a battery of a vehicle, the charging device comprising:

  • an insulation resistance detecting circuit including a coupling capacitor, the insulation resistance detecting circuit being disposed between the battery and a vehicle body for detecting an insulation resistance between the battery and the vehicle body;

    a charging circuit having an input terminal to be coupled to an alternating current source and an output terminal to be coupled to the battery, the charging circuit converting an alternating current supplied from the alternating current source into a direct current and charging the battery in a state without insulting the input terminal and the output terminal and in a state where the vehicle body is coupled to an earth;

    a leak current detecting circuit being coupled to the charging circuit, the leak current detecting circuit detecting a leak current flowing between the charging circuit and the earth; and

    a decoupling circuit decoupling the insulation resistance detecting circuit from one of the battery and the vehicle body during a charging of the battery.

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