Is there a way to control a LLC resonant converter (current mode), whereby the feedback is realized from the primary side of the converter (Resonant current and input voltage). ie, Taking both the voltage and current feedback from the primary side. If possible, how can i get some books or articles that shows how to implement it.

 

To do that would require an auxiliary winding which would have to be on the secondary side of the split bobbin in order to track the output. Then it would need insulating to mains standards, which defeats all the advantages of a split bobbin.
LLC converters are often used unregulated, with the primary at a fixed frequency, especially in audio power amplifiers.

 

Yes Ian0, I agree with what you say - well answered.