Comparison of topologies for charger Hybrid flyback vs LLC

[NXTY_Miyashita]

I would like to know the possibilities of LLC topology in charger applications.
In the whitepaper at the following URL, there is a description of the main LLC position, but it is not mentioned in the topology comparison in Table 1.
Can someone add LLC to this table?

https://www.infineon.com/dgdl/Infineon-Gallium_nitride_A_full_GaN_solution_for_high_power_density_ch...

[ShifangZ_26 · Accepted solution]

Hello ,

LLC  topology in USB-C charger applications, if your question is based on USB-C power adapter (Since you are referring whitepaper of USB-C page, I guess you are looking for this), LLC topology  is not the best topology, since USB-C power adapter is wide and dynamic output requirements, for example, fixed voltage of 5V, 9V, 15V, 20V, 28V, 48V, and SPR range 3.3V -31V with 10mV units per step, EPR range with 20mV units per step.  If LLC topology have to selected, the output need additional DC/DC transfer for USB-C requirements.  For 65W -240W, Infineon will update it by end of Nov, and PFC + Hybrid Flyback, PFC + Active-Clamp Flyback will be introduced. 

For feedback of adding LCC introduction in write paper,  we will feedback to owner of this documentation. Please kindly subscribe this documentation. 

Best Regards,

Lisa

[NXTY_Miyashita]

Hello,

Thank you for your response.

Thank you also for your feedback to the document owner. I will subscribe to this paper.

I also agree that LLC is not the best topology for dynamic output requirements.

Best Regards

Satoshi