A Two-Phase Interleaved Power Factor Correction Boost Converter With a Variation-Tolerant Phase Shifting Technique

This paper presents a two-phase interleaved critical conduction mode (CRM) power factor correction boost converter with a variation-tolerant phase shifter (VTPS), which ensures accurate 180° phase shift between the two interleaved converters. A feedback loop similar to a phase-locked loop controls t...

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Bibliographic Details
Published in:IEEE transactions on power electronics 2014-02, Vol.29 (2), p.1032-1040
Main Authors: Roh, Y-S, Moon, Y-J, Park, J, Yoo, C
Format: Article
Language:English
Subjects:
Accuracy
Applied sciences
Circuit properties
Circuits
Circuits of signal characteristics conditioning (including delay circuits)
Control systems
Converters
Convertors
Critical conduction mode (CRM)
Customer relationship management
Electric, optical and optoelectronic circuits
Electrical engineering. Electrical power engineering
Electrical equipment
Electrical machines
Electronic circuits
Electronics
Exact sciences and technology
Feedback control systems
Generators
interleaved boost converter
Phase locked loops
Phase shifters
Power converters
Power electronics, power supplies
Power factor
Power factor correction
power factor correction (PFC)
Signal convertors
Switches
Switching
Timing
variation-tolerant phase shifter (VTPS)
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Summary:This paper presents a two-phase interleaved critical conduction mode (CRM) power factor correction boost converter with a variation-tolerant phase shifter (VTPS), which ensures accurate 180° phase shift between the two interleaved converters. A feedback loop similar to a phase-locked loop controls the amount of the phase shifting of the VTPS. The proposed VTPS has better immunity of process, supply, and temperature variations than the conventional phase shifter. A 320-W two-phase interleaved CRM boost converter prototype has been implemented, while the proposed VTPS and conventional interleaving phase shifter can be selectively applied to compare the performance of the proposed technique with the conventional one. Experimental results show that the two-phase interleaved CRM boost converter has better performance with the proposed VTPS. The proposed VTPS circuit can be applied to any type of interleaved switching power converter.
ISSN:0885-8993
1941-0107
DOI:10.1109/TPEL.2013.2262313