发明申请
- 专利标题: Method, system and calibration technique for power measurement and management over multiple time frames
- 专利标题(中): 多个时间范围内功率测量和管理的方法,系统和校准技术
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申请号: US11032877申请日: 2005-01-11
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公开(公告)号: US20060156042A1公开(公告)日: 2006-07-13
- 发明人: Dhruv Desai , Nickolas Gruendler , Carl Morrell , Gary Shippy , Michael Scollard , Michael Steinmetz , Malcolm Ware , Christopher Wood
- 申请人: Dhruv Desai , Nickolas Gruendler , Carl Morrell , Gary Shippy , Michael Scollard , Michael Steinmetz , Malcolm Ware , Christopher Wood
- 主分类号: G06F1/26
- IPC分类号: G06F1/26
摘要:
A method and system and calibration technique for power measurement and management over multiple time frames provides responsive power control while meeting global system power consumption and power dissipation limits. Power output of one or more system power supplies is measured and processed to produce power values over multiple differing time frames. The measurements from the differing time frames are used to determine whether or not system power consumption should be adjusted and then one or more devices is power-managed in response to the determination. The determination may compare a set of maximum and/or minimum thresholds to each of the measurements from the differing time frames. A calibration technique uses a precision reference resistor and voltage reference controlled current source to introduce a voltage drop from the input side of a power supply sense resistor calibration is made at the common mode voltage of the power supply output.