Apparatus of power management circuit including on-board current-sense resistor and on-die current sensor

An apparatus including a printed circuit board (PCB) including a sense resistor; and an integrated circuit (IC) mounted on the PCB, wherein at least a portion of the IC draws current from a power rail, wherein the sense resistor is coupled between the power rail and the IC, wherein the sense resisto...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: HOFMANN, RICHARD GERARD, ZOLEY, TIMOTHY, CITTERELLE, KEVIN BRADLEY, SEVERSON, MATTHEW, CAO, LIPENG
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:An apparatus including a printed circuit board (PCB) including a sense resistor; and an integrated circuit (IC) mounted on the PCB, wherein at least a portion of the IC draws current from a power rail, wherein the sense resistor is coupled between the power rail and the IC, wherein the sense resistor is configured to produce a sense voltage in response to the current drawn by the at least portion of the IC, and wherein the IC includes a current sensor configured to generate a signal indicative of the current drawn by the at least portion of the IC based on the sense voltage.