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FUEL GAUGE CIRCUIT AND BATTERY PACK

  • US 20110274952A1
  • Filed: 01/12/2010
  • Published: 11/10/2011
  • Est. Priority Date: 01/14/2009
  • Status: Active Grant
First Claim
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1. A fuel gauge circuit which detects a residual quantity of a battery and is disposed on a substrate together with a protection circuit which protects charging and discharging of the battery, the fuel gauge circuit comprising:

  • a voltage monitor terminal disposed on a side of the fuel gauge circuit, facing a positive power-supply terminal of the substrate, and connected to each of the positive power-supply terminal of the substrate and a voltage sensor disposed in the fuel gauge circuit;

    a voltage through terminal disposed on a side of the fuel gauge circuit, facing the protection circuit and being opposite to the side facing the positive power-supply terminal, and connected to a voltage monitor terminal of the protection circuit; and

    a wiring disposed within the fuel gauge circuit to connect the voltage monitor terminal of the fuel gauge circuit to the voltage through terminal.

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