Invention Grant
- Patent Title: Electronic apparatus and method of calculating input power value of power supply unit in electronic apparatus
- Patent Title (中): 电子设备中电源单元输入功率值计算的电子设备及方法
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Application No.: US13166696Application Date: 2011-06-22
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Publication No.: US08456149B2Publication Date: 2013-06-04
- Inventor: Tomoaki Tokunaga
- Applicant: Tomoaki Tokunaga
- Applicant Address: JP Tokyo
- Assignee: Kabushiki Kaisha Toshiba
- Current Assignee: Kabushiki Kaisha Toshiba
- Current Assignee Address: JP Tokyo
- Agency: Blakely, Sokoloff, Taylor & Zafman LLP
- Main IPC: G01R19/00
- IPC: G01R19/00
Abstract:
According to one embodiment, an electronic apparatus includes a power supply unit, a current value calculator, and an input power value calculator. The current value calculator is configured to calculate a current value on a power supply cable led out from the power supply unit based on a voltage between two ends of the power supply cable and a resistance value of the power supply cable. The input power value calculator is configured to calculate an input power value of the power supply unit based on the current value on the power supply cable calculated by the current value calculator and an input/output characteristic (efficiency) of the power supply unit.
Public/Granted literature
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