En isoleret Ćuk-konverter af ''Integrated Magnetics Cuk Converter''-varianten kan designes til at være ''ripple''-løs (ved CCM) i både input og output, men denne kan kun under specielle designs gøres stabil.<ref name="zerocukripple">[https://web.archive.org/web/20160406002915/http://boostbuck.com/TheFourTopologies.html boostbuck.com: Easy Design of the Boostbuck Family of Converters: The Four Boostbuck Topologies] Citat: "...Coupled Inductor Cuk Converter...The procedure yields a control function with a single RHP zero, which cannot be damped out...<br />[]<br />...Integrated Magnetics Cuk Converter...This fourth topology, which features zero current ripple at both input and output...It is not suitable for use in a power supply, since the control function contains two [[Right hand pole zero|RHP zeros]] that cannot be damped out..."</ref>
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