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An envelope-following approach to switching power converter simulation

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2 Author(s)
J. White ; Dept. of Electr. Eng. & Comput. Sci., MIT, Cambridge, MA, USA ; S. B. Leeb

The implementation of an envelope-following method that is particularly efficient for open-loop switching power converters with fixed clock frequencies is described. A simple method for computing envelopes that involves solving a sequence of two-point boundary value problems is derived. The two-point boundary value problems are solved with a shooting or Newton method. The computations involved are explained and their implementation in the Nitswit program, along with results from using it to simulate several switching power circuits, is described. Results demonstrating the method's effectiveness are presented

Published in:

IEEE Transactions on Power Electronics  (Volume:6 ,  Issue: 2 )