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Fast-scale instability in a PFC boost converter under average current mode control
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| Author(s) |
H. H. C. Iu; Y. Zhou; C. K. Tse |
| Abstract |
This paper describes the fast-scale instability in a power-factor-correction (PFC) boost converter
under a conventional average current mode control. The converter is operated in continuous mode.
Computer simulations and theoretical analysis are performed to study the e ects of the time-varying
input voltage under the variation of some chosen parameters on the qualitative behaviour of the
system. It is found that fast-scale instability may occur during a line cycle. The results provide
useful information for the design of PFC boost converters for stable operation.
Keywords|Power-factor-correction boost converter, average current-mode control, bifurcation,
fast-scale instability. |
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| Filename: | EPE2003-PP0222 - Iu |
| Filesize: | 296 KB |
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| Type |
Members Only |
| Date |
Last modified 2003-10-16 by Unknown |
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