Hello,
I want to design a LLC converter which will step up the voltage. Due to high currents circulating in the primary side I want to carry LLC resonant part to secondary side which will be high voltage low current so I can lower the number of capacitors and wire gauge of the inductors. My question is this:
When I move resonant components to secondary side does the control scheme change ? I found some papers with conflicting claims.Do we operate in inductive region like in the normal LLC converter in which resonant components are in the primary side and as the power increases do we lower switching frequency. Is the analysis and the design changes? If it is then I can use existing LLC controllers like UCC25600.
I am newly graduated EE engineer and have very little real world experience.
Here is the paper I am looking at right now: Design of Wide Input Voltage Range High Step-Up DC-DC Converter based on Secondary-side Resonant Tank Full Bridge LLC by Arief Noor Rahman and Yao-Ching Hsieh
Thanks for your time