Title :
An envelope-following method for the efficient transient simulation of switching power and filter circuits
Author :
Kundert, K. ; White, J. ; Sangiovanni-Vincentelli, A.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., MIT, Cambridge, MA, USA
Abstract :
The transient behavior of circuits like switching power converters and switched capacitor filters are expensive to simulate because they are clocked at a frequency whose period is orders of magnitude smaller than the time interval of interest to the designer. It is possible to reduce the simulation time without compromising accuracy by exploiting the fact that the behavior of such a circuit in a given high-frequency clock cycle is similar, but not identical, to its behavior in the preceding and following cycles. In particular, the envelope of the high-frequency clock can be followed by accurately computing the circuit behavior over occasional cycles. The authors describe the implementation of an envelope-following method that is particularly efficient for switching power and filter circuits, and they present results demonstrating the method´s effectiveness.<>
Keywords :
circuit analysis computing; clocks; digital simulation; power convertors; power integrated circuits; switched filters; switching networks; transients; accuracy; envelope-following method; filter circuits; high-frequency clock cycle; simulation time; switched capacitor filters; switching power converters; transient simulation; Circuit simulation; Clocks; Computational modeling; Computer simulation; Frequency; Power filters; Switched capacitor circuits; Switches; Switching circuits; Switching converters;
Conference_Titel :
Computer-Aided Design, 1988. ICCAD-88. Digest of Technical Papers., IEEE International Conference on
Conference_Location :
Santa Clara, CA, USA
Print_ISBN :
0-8186-0869-2
DOI :
10.1109/ICCAD.1988.122546