Invention Grant
- Patent Title: Method for improving power distribution current measurement on printed circuit boards
- Patent Title (中): 改善印刷电路板上配电电流测量的方法
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Application No.: US12124388Application Date: 2008-05-21
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Publication No.: US07765673B2Publication Date: 2010-08-03
- Inventor: Jean-Francois Fauh , Claude Gomez , Andre Lecerf , Denis G. Roman
- Applicant: Jean-Francois Fauh , Claude Gomez , Andre Lecerf , Denis G. Roman
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agent Anthony J. Canale
- Priority: EP03368031 20030418
- Main IPC: G01R31/28
- IPC: G01R31/28

Abstract:
A method and system for improving power distribution and/or current measurement on a printed circuit board is disclosed. According to the invention, a first power plane adapted for current measurement includes a first segment to which a current source is connected and a second segment to which other devices may be connected, forming the current load. A third segment is used to measure the current between the first segment and the second segment through two vias that link two points of the third segment to, preferably, two pads of the external layer. In a preferred embodiment, vias are connected to the first segment so that current flow in the third segment is linear, to improve and simplify current determination. The resistivity between the pair of vias may be computed or estimated using calibrated currents.
Public/Granted literature
- US20090044403A1 SYSTEM AND METHOD FOR IMPROVING POWER DISTRIBUTION CURRENT MEASUREMENT ON PRINTED CIRCUIT BOARDS Public/Granted day:2009-02-19
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