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|Title: ||The method of double averaging : an approach for modeling power-factor-correction switching converters|
|Authors: ||Wong, Siu-chung|
Tse, C. K. Michael
|Subjects: ||Averaged model|
Closed-form stability condition
Power factor correction (PFC)
|Issue Date: ||Feb-2006 |
|Citation: ||IEEE transactions on circuits and systems. I, Regular papers, Feb. 2006, v. 53, no. 2, p. 454-462.|
|Abstract: ||This paper describes the modeling of power-factor-correction converters under average-current-mode control, which are widely used in switch-mode power supply applications. The
objective is to identify stability boundaries in terms of major circuit parameters for facilitating design of such converters. The approach employs a double averaging procedure, which first applies the usual averaging over the switching period and
subsequently applies generalized averaging over the mains period. The resulting model, after two averaging steps and application
of a harmonic balance procedure, is nonlinear and capable of describing the low-frequency nonlinear dynamics of the system.
The parameter ranges within which stable operation is guaranteed can be accurately and easily found using this model. Experimental measurements are provided for verification of the analytical
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|Type: ||Journal/Magazine Article|
|Appears in Collections:||EIE Journal/Magazine Articles|
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