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Wavelet Analysis for Microprocessor Design: Experiences with Wavelet-Based dI/dt Characterization

R. Joseph, Zhigang Hu, M. Martonosi
10th International Symposium on High Performance Computer Architecture (HPCA'04)  
This paper applies wavelet analysis techniques to the problem of dI/dt estimation and control in modern microprocessors.  ...  While prior work has considered Bayesian phase analysis, Markov analysis, and other techniques to characterize hardware and software behavior, we know of no prior work using wavelets for characterizing  ...  Representing dI/dt Severity with Wavelets Our wavelet characterization and variation model is based on two key observations.  ... 
doi:10.1109/hpca.2004.10027 dblp:conf/hpca/JosephHM04 fatcat:moshvhd6erbyreawuz75n7gcuq

Characterizing the Effect of Microarchitecture Design Parameters on Workload Dynamic Behavior

Chang-Burm Cho, Wangyuan Zhang, Tao Li
2007 2007 IEEE 10th International Symposium on Workload Characterization  
In this study, we apply wavelet-based analysis to decompose workload dynamics into a series of wavelet coefficients, which represent program behavior ranging from lowresolution approximation to high-resolution  ...  Therefore understanding the effect of design parameters on workload dynamics at early, microarchitecture exploration stage is crucial for highperformance and complexity-efficient designs.  ...  Emerging processor design challenges, such as inductive noise (also known as the di/dt problem) which significantly affects processor runtime reliability, are closely related to the variation of program  ... 
doi:10.1109/iiswc.2007.4362176 dblp:conf/iiswc/ChoZL07 fatcat:gi3ukz3tarcjlhqgqhg2blrbxi

Verification and co-design of the package and die power delivery system using wavelets

Imad A. Ferzli, Eli Chiprout, Farid N. Najm
2008 2008 IEEE-EPEP Electrical Performance of Electronic Packaging  
We introduce a wavelet-based framework to characterize circuit currents and compute worst-case supply/ground voltage fluctuations.  ...  This framework is apt at determining the impact of the various stages of the power delivery network, enabling their co-design.  ...  To illustrate this idea, we applied our analysis on a 4-core early-stage design, and measured the contribution of leakage, IR-drop, and di/dt switching activity for each core, on the worst-case voltage  ... 
doi:10.1109/epep.2008.4675862 fatcat:rypk7qjkirblzjgywlsaqyr2ai

Verification and Codesign of the Package and Die Power Delivery System Using Wavelets

Imad A. Ferzli, Eli Chiprout, Farid N. Najm
2010 IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems  
This approach has been applied to an industrial microprocessor design, resulting in realistic and nonobvious worst-case waveforms.  ...  This framework allows for the quick determination of the impact of either the package or the die on the worstcase behavior, which enables their codesign.  ...  To illustrate this idea, we applied our analysis on a four-core early stage design, and measured the contribution of leakage, IR-drop, and di /dt switching activity for each core, on the worst-case voltage  ... 
doi:10.1109/tcad.2009.2034563 fatcat:tqtynipggjeczk4oqixoi5bs7e

Voltage and Current Measuring Technologies for High Voltage Direct Current Supergrids: A Technology Review Identifying the Options for Protection, Fault Location and Automation Applications

Dimitrios Tzelepis, Vasileios Psaras, Eleni Tsotsopoulou, Sohrab Mirsaeidi, Adam Dysko, Qiteng Hong, Xinzhou Dong, Steven M. Blair, Vassilis Nikolaidis, Vasileios Papaspiliotopoulos, Grzegorz Fusiek, Graeme Burt (+2 others)
2020 IEEE Access  
Superior transient characteristics • Compliance with secondary technology base on microprocessors VOLUME XX, 2020 [115] . • Design enabling short-circuit proof characteristics • No need for disconnection  ...  /dt [73] 10 kHz U V , OV , di/dt, Nave Bayes classifier [74] × × 10 kHz T V AC [75] 10 kHz DV T W [76] × × 5 kHz di/dt, ∆i [77] 5 kHz CSD [78] × × 2 kHz OC, di/dt, W T , P CA, GF S [79] - T W D [  ... 
doi:10.1109/access.2020.3035905 fatcat:b6md3nalxze2tl3ke74kfyzuy4

A Novel Arc Fault Detector for Early Detection of Electrical Fires

Kai Yang, Rencheng Zhang, Jianhong Yang, Canhua Liu, Shouhong Chen, Fujiang Zhang
2016 Sensors  
Then, the detection algorithm based on a weighted least squares support vector machine is designed and successfully applied in a microprocessor. Finally, an AFD is developed.  ...  After the common features of these signals are studied, high-frequency energy and current variations are extracted as an input eigenvector for use by an arc fault detection algorithm.  ...  The value of E r oriented along the x-axis can be expressed as: E r pD, tq « sinφ 4πε 0 Dc 2 ż δ 0 di dt dx (1) where D is the distance from the component, t is time, φ is the angle with the y-axis, ε  ... 
doi:10.3390/s16040500 pmid:27070618 pmcid:PMC4851014 fatcat:5vpmilf6xbb7zctxeoz2z2kb7a

Power Distribution Networks for System-on-Package: Status and Challenges

M. Swaminathan, J. Kim, I. Novak, J.P. Libous
2004 IEEE Transactions on Advanced Packaging  
This paper provides an overview on the design of power distribution networks for digital and mixed-signal systems with emphasis on design tools, decoupling, measurements, and emerging technologies.  ...  The power consumption of microprocessors is increasing at an alarming rate leading to 2X reduction in the power distribution impedance for every product generation.  ...  Choi for his help with the EBG structure and the many researchers who are working on power distribution related issues around the world.  ... 
doi:10.1109/tadvp.2004.831897 fatcat:6fhly2dwvzdknas2sbe6rtfwgy

Robotic isotropy and optimal robot design of planar manipulators

M.V. Kircanski
Proceedings of the 1994 IEEE International Conference on Robotics and Automation  
Protection circuits Snubbers, MOVs, di / dt inductor, semiconductor fuses. Cooling of semiconductor devices Basic theory -thermal resistance, simple heat sink calculations.  ...  and wavepacket analysis Construction of wavelets. 7.  ...  of files. 7 Design of Data Base Interactions: Systems development in data base, relationships in data, data structured diagrams, structuring the data. 8 Design of Data Communications: communications  ... 
doi:10.1109/robot.1994.351213 dblp:conf/icra/Kircanski94 fatcat:uawqnzropbgivcanzqihtimt2m

Microarchitectural Low-Power Design Techniques for Embedded Microprocessors

Jeremy Hugues-Felix Constantin
The developed design flow for DCA based on dynamic timing analysis was used to characterize the improved timing upper bounds of each instruction.  ...  We then present a design flow and a characterization & evaluation environment for DCAenabled microprocessor design.  ... 
doi:10.5075/epfl-thesis-7168 fatcat:qqbipezpknhstkk3o2t5mwjvbi

Effect of Clock and Power Gating on Power Distribution Network Noise in 2D and 3D Integrated Circuits

Vinay C Patil
We utilize wavelet based analysis as wavelets are a natural way of characterizing the time-frequency behavior of the power grid.  ...  based problem formulation (Power Gating).  ...  Russ Joseph, et al. apply wavelet analysis technique to the problem of di/dt estimation and control in a modern microprocessor [17].  ... 
doi:10.7275/6051798 fatcat:4feghmahqvahlgr47fspb3fvpq

An infrastructure for program power behavior characterization and optimization evaluation

Chunling Hu
This infrastructure is constituted of three components for instrumentation, phase classification and power measurement, respectively.  ...  These selected intervals accurately characterize the fine-grained time-dependent behavior of the program, as well as accuratelyestimate the total energy consumption of a program.  ...  The dI/dt problem is caused by large variations of current in a short time.  ... 
doi:10.7282/t3bc3zwc fatcat:mrspqmtafvduxgkitn2qg7345u

Design & Performance Comparison of FIR Low Pass Filter Using Kaiser Window & Remez Exchange Algorithm

Asst Nirav, Raghajibhai Patel, Asst Nirav, Raghajibhai Patel
2013 International Journal of Emerging Trends in Electrical and Electronics   unpublished
Depending on the response of the system, digital filters can be classified into Finite Impulse Exchange Algorithm produces most efficient filter with minimum possible order.  ...  The current variation is limited by the presence of the resonant inductor, defined by di/dt=(V o -V CM2 )/L r (3.6) Considering the maximum di/dt at the turn-on commutation equal to 25 A/µs, the resonant  ...  The resonant inductor limits the current variation (di/dt) in all diodes, reducing the reverse recovery current.  ... 

CAS - CERN Accelerator School: Course on Digital Signal Processing [article]

D Brandt
In the afternoons the students split into two groups with people working in pairs.  ...  This is the first time this topic has been selected for a specialized course.  ...  a good part of the manuscript for the write-up.  ... 
doi:10.5170/cern-2008-003 fatcat:gz42zmfggffgngh53pkbeqthua

Simulation and Analysis of Maximum-Power-Point-Tracker for Photovoltaic Arrays

Manju Khare, Yogendra Kumar, Ganga Agnihotri, V Sethi, Manju Khare, Yogendra Kumar, Ganga Agnihotri, V Sethi
2013 International Journal of Emerging Trends in Electrical and Electronics (IJETEE)   unpublished
The design method based on the adaptive MPPT algorithm is proposed to generate the optimal power output.  ...  A DSP-based control system for synchronization of plural AC power sources has also been implemented.  ...  A.S.Mane who helped us a lot & played central role to cooperate with me. I would also like to thank our Head of the Department Prof. Mr. V.B.Waghmare for his firm support.  ...