Coded data generation or conversion – Converter calibration or testing
Reexamination Certificate
2008-12-05
2010-06-22
JeanPierre, Peguy (Department: 2819)
Coded data generation or conversion
Converter calibration or testing
C702S085000
Reexamination Certificate
active
07741983
ABSTRACT:
The present invention pertains to calibration in current sensing applications. Power conversion systems such as those used in computer architectures may employ step down converters such as buck converters or other types of converters. The present invention provides calibration processes and devices to account for various parasitic resistances which are found in such systems. A calibration circuit may be coupled to the buck converter or other power conversion to determine a calibrated voltage signal for the output of the power converter. An effective DC resistance may be determined and programmed for use by a control device used. In this way, the parasitic resistances are taken into account to obtain an accurate estimate of the actual current. In turn, this enables power converters and other devices to operate within specification requirements.
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Ammu Udaya Kiran
Lakshmikanthan Srikanth
Lipiansky Eduardo M.
Google Inc.
Jean-Pierre Peguy
Lerner David Littenberg Krumholz & Mentlik LLP
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