The objective is attained here by the development of continuous linearized models for the switched power stages in Fig. 2; thus, the power stage and controller can be treated as separate linear blocks.
Averaged Power-Stage Models General ModelsConsider first the boost power stage. One can easily verify that Fig. 3 is an exact equivalent circuit' of the boost power stage shown in Fig. 2(B)
T-The effect of averaging is approximately that of a low-pass filter with cut-off frequency ws = 2ir/T. The time-averaged model of the boost power stage is shown in Fig. 4(A)
The objective is attained here by the development of continuous linearized models for the switched power stages in Fig. 2; thus, the power stage and controller can be treated as separate linear blocks.
Averaged Power-Stage Models General ModelsConsider first the boost power stage. One can easily verify that Fig. 3 is an exact equivalent circuit' of the boost power stage shown in Fig. 2(B)
T-The effect of averaging is approximately that of a low-pass filter with cut-off frequency ws = 2ir/T. The time-averaged model of the boost power stage is shown in Fig. 4(A)
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