For many years engineers have been using linear superposition to solve steady state thermal problems with multiple-heat-source systems. Predicting transient response of single-heat-source systems has been performed using R-C Foster networks with reasonable success. In most real applications there are multiple heat sources that are interacting perhaps in very complex ways in the time domain. Being able to simulate these interactions using a spreadsheet tool or a circuit simulator may be very advantageous to a device or application engineer designing or evaluating an application design. Using an RC-network model of a system to represent the individual transient response curves, we’ll show how to do this bookkeeping (and all the other calculations) for a simple system using Microsoft Excel. We’ll also see how to set up this sort of problem in a circuit simulator.
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ASME 2007 InterPACK Conference collocated with the ASME/JSME 2007 Thermal Engineering Heat Transfer Summer Conference
July 8–12, 2007
Vancouver, British Columbia, Canada
Conference Sponsors:
- Electronic and Photonic Packaging Division
ISBN:
0-7918-4278-9
PROCEEDINGS PAPER
Using Linear Superposition to Solve Multiple Heat Source Transient Thermal Problems Available to Purchase
David T. Billings,
David T. Billings
ON Semiconductor, Phoenix, AZ
Search for other works by this author on:
Roger P. Stout
Roger P. Stout
ON Semiconductor, Phoenix, AZ
Search for other works by this author on:
David T. Billings
ON Semiconductor, Phoenix, AZ
Roger P. Stout
ON Semiconductor, Phoenix, AZ
Paper No:
IPACK2007-33576, pp. 791-799; 9 pages
Published Online:
January 8, 2010
Citation
Billings, DT, & Stout, RP. "Using Linear Superposition to Solve Multiple Heat Source Transient Thermal Problems." Proceedings of the ASME 2007 InterPACK Conference collocated with the ASME/JSME 2007 Thermal Engineering Heat Transfer Summer Conference. ASME 2007 InterPACK Conference, Volume 2. Vancouver, British Columbia, Canada. July 8–12, 2007. pp. 791-799. ASME. https://doi.org/10.1115/IPACK2007-33576
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