Single-loop control scheme for electrolytic capacitor-less AC–DC rectifiers with PFC in continuous conduction mode

A new simplified control scheme is proposed for AC–DC electrolytic capacitor-less converters operating in continuous conduction mode (CCM). The proposed method has a single-loop controller responsible for both regulation and power factor correction (PFC). In comparison with the two-loop conventional...

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Bibliographic Details
Published in:Electronics letters 2020-05, Vol.56 (10), p.506-508
Main Authors: Nassary, M, Orabi, M, El Aroudi, A
Format: Article
Language:English
Subjects:
AC–DC electrolytic capacitor‐less
closed loop systems
closed‐loop converter
continuous conduction mode
control circuitry
current mode controller
DC‐DC power convertors
electric current control
electrolytic capacitors
PFC
Power electronics, energy conversion and sustainability
power factor correction
simplified control scheme
single‐loop control scheme
single‐loop controller
two‐loop conventional CCM
voltage control
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Summary:A new simplified control scheme is proposed for AC–DC electrolytic capacitor-less converters operating in continuous conduction mode (CCM). The proposed method has a single-loop controller responsible for both regulation and power factor correction (PFC). In comparison with the two-loop conventional CCM current mode controller, the proposed scheme does not need a multiplier or extra sensors hence simplifying the control circuitry and its design procedures. Modelling of the closed-loop converter is addressed and experimental results are provided to show the feasibility of the control scheme.
ISSN:0013-5194
1350-911X
1350-911X
DOI:10.1049/el.2020.0023