The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 18, 2017
Filed:
Jun. 28, 2011
Martin Eckert, Boeblingen, DE;
Roland Frech, Ostfildern, DE;
Claudio Siviero, Boeblingen, DE;
Jochen Supper, Boeblingen, DE;
Otto A. Torreiter, Boeblingen, DE;
Thomas-michael Winkel, Boeblingen, DE;
Martin Eckert, Boeblingen, DE;
Roland Frech, Ostfildern, DE;
Claudio Siviero, Boeblingen, DE;
Jochen Supper, Boeblingen, DE;
Otto A. Torreiter, Boeblingen, DE;
Thomas-Michael Winkel, Boeblingen, DE;
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method for determining power consumption of a power domain within an integrated circuit is presented. In a first step, a local power supply impedance profile (Z(f)) of this power domain is determined. Subsequently, a local time-resolved power supply voltage (U(t)) is measured while a well-defined periodic activity is executed in power domain. A set of time-domain measured voltage data (U(t)) is thus accumulated and transformed into the frequency domain to yield a voltage spectrum (U(f)). A current spectrum I(t) is calculated from this voltage profile (U(f)) by using the power supply impedance profile Z(f) of this power domain as I(t)=F{U(f)/Z(f)}. Finally, a time-resolved power consumption spectrum P(t) is determined from measured voltage spectrum U(t)) and calculated current spectrum (I(t)). This power consumption (P(t)) may be compared with a reference (P(t)) to verify whether power consumption within power domain matches expectations.