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Current detection apparatus for a car power source

  • US 20080224665A1
  • Filed: 03/13/2008
  • Published: 09/18/2008
  • Est. Priority Date: 03/16/2007
  • Status: Active Grant
First Claim
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1. A current detection apparatus for a car power source comprising:

  • a current detection section that detects charging current and discharging current of the car driving battery;

    a level-shift circuit connected to the output-side of the current detection section that shifts the output of the current detection section; and

    an A/D converter connected to the output-side of the level-shift circuit,wherein the level-shift circuit shifts the current detection section output signal to unbalance the maximum discharging current and maximum charging current that can be detected.

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