Systems and methods for sensing current while minimizing measurement error and power loss
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United States of America Patent
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Oct 25, 2016
Grant Date -
Nov 19, 2015
app pub date -
May 19, 2014
filing date -
May 19, 2014
priority date (Note) -
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Abstract
A method may include deactivating a switch of a measurement circuit during a measurement portion of at least one voltage regulator phase, wherein each of the at least one voltage regulator phase is integral to a voltage regulator and each of the at least one voltage regulator phase comprises a power stage. The power stage may include a high-side switch for delivering electrical current to the at least one information handling resource in conformity with a first duty cycle of the high-side switch. The power stage may also include a low-side switch for sinking electrical current to an electrical ground in conformity with a second duty cycle of the low-side switch. The method may also include measuring a voltage across a sense resistor of the measurement circuit during the measurement portion, wherein the sense resistor is coupled in parallel with non-gate terminals of the switch.
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