© The Institution of Engineering and Technology
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.
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http://iet.metastore.ingenta.com/content/journals/10.1049/el.2020.0023
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Single-loop control scheme for electrolytic capacitor-less AC–DC rectifiers with PFC in continuous conduction mode