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Extension of state-space averaging to resonant switches and beyond

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2 Author(s)
Witulski, A.F. ; Dept. of Electr. & Comput. Eng., Arizona Univ., Tucson, AZ, USA ; Erickson, R.W.

It is shown that the state-space averaging method can be extended by linear network theory from the domain of pulse-width-modulated converters to a much larger class, including resonant switches and current-programmed mode. The canonical model concept is also extended, and it is shown that the effect of resonant switching is to introduce a feedback block into the generalized canonical model. These results are applied to linear zero-current and zero-voltage resonant switches, a new class of nonlinear resonant-switch converters, and the current-programmed mode. Equivalent circuit models are developed for both full and half-wave operation, and experimental verification is presented

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Power Electronics, IEEE Transactions on  (Volume:5 ,  Issue: 1 )