®2003
Ting-Yuan Wang

PODEA 
- Power Delivery Efficient Analysis

Rong Jiang, Tsung-Hao Chen and Charlie Chung-Ping Chen

The huge number of independent sources of power delivery system prevents the use of traditional model reduction algorithms due to the port domination nature. Now we present PODEA to analyze RC linear circuits with many dynamic independent sources. Based on multi-port Norton theorem and model order reduction techniques, we develop and apply current source transformation algorithm to transform attached current sources from one node to its neighboring nodes. Since there is no source attached, general RC reduction algorithms can be applied to eliminate the node. Experimental results demonstrate the efficiency and accuracy of the proposed PODEA algorithm. With linear running time, for case with over 50,000 nodes, our reduction method only takes about 0.6 seconds while maintain with 1% of error and 88% reduction ratio.

PC (Windows based); SUN

podea [netlist file name] [result file name]

Parameters:     

-f Frequency of Interest (example: 1g, 100m, etc)

-s Reduction Scale

-c Maximum Connection of Each Node

-p Maximum PWL source sample point

-t PWL Sample Error Threshold

Example:

podea test.sp out.sp –f 1g –s 100 –c 5 –p 20 –t 10p

(test.sp,  out.sp)

Result waveforms:

All questions and suggestions email to jiang@cae.wisc.edu.

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