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Electronic apparatus and method of calculating input power value of power supply unit in electronic apparatus

  • US 8,456,149 B2
  • Filed: 06/22/2011
  • Issued: 06/04/2013
  • Est. Priority Date: 11/16/2010
  • Status: Expired due to Fees
First Claim
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1. An electronic apparatus comprising:

  • a power supply module;

    a current value calculator to calculate a current value on a power supply cable led out from the power supply module based on a potential difference between two ends of the power supply cable and a resistance value of the power supply cable; and

    an input power value calculator to acquire efficiency of the power supply module from the current value calculated by the current value calculator and to calculate an input power value of the power supply module based on a previously-given input/output characteristic of the power supply module.

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