Hello Vikas Dwivedi,
Thank you for your response.
Replying to your original questions:
3)Will you provide the source code?
Yes.
But please be aware that the source code was developed for the Microcontroller used on the board (XMC).
This μC is an INDUSTRIAL micro and the source code will require adaptations for other Automotive-grade microcontrollers.
The whole information (design files and source code) is available via the "Product Registration":
https://www.infineon.com/cms/en/product/promopages/productregistration/
For this a serial number is needed which confirms that you have purchased the board.
4)Please provide a design consideration document to change the rating of the components.
Unfortunately we do not have such a document.
If modification is needed, and there is an order of Infineon products big enough to justify it, we could arrange a call with the designer of the board.
Now, for the PFC evaluation board:
1)How to add support for Input AC Voltage = 90-270VAC.
Major changes need to be made for this to happen.
For example, the MOSFETs would very likely need to be swapped for a higher Id part, or use two in parallel.
Another example is the control loop, which needs to be readjusted.
The main inductor needs to be changed for a higher current rated one.
The UVLO setting needs to be changed so that the microcontroller does not shut down.
Etc.
Instead of the SiC board, you could take a look at our GaN PFC board:
https://www.infineon.com/cms/en/product/evaluation-boards/eval_2500w_pfc_gan_a/
It is only 2.5 kW, but it can work in both low and high lines.
2)How to add support for SAE J1772?
As mentioned before, these boards are not automotive qualified.
If SAE J1772 needs to be supported, I suggest going over the SAE standard:
https://www.sae.org/standards/content/j1772_201001/
In order to perform the Control Pilot and Proximity Pilot functions, the microcontroller's code needs to be changed accordingly, as well as adding a circuit as below:
Regarding the DC-DC:
1)As you said LLC has slightly higher efficiency so is there any way to make its output voltage range from 40V to 60V ? Do you have any design notes for the same?
The control algorithm needs to be customized and the specs of the components need to be revised to check for compatibility.
Unfortunately, we do not have said app note.
Again, if an order big enough is in place, a call with the board designer could be arranged to discuss customization.
2)How we can make PSFB unidirectional? What are the changes required to do so?
The control scheme needs to be changed from the basic switching pattern.
3)Do you have any reference design which supports battery charging profile i.e. Constant current and constant voltage? Please share the same if you have.
Yes, we do. The board below includes a PFC and a DC-DC stage, Vout is 40V to 60V, Vin is 90Vac to 265Vac, and it supports CC and CV charging modes.
The power, however, is limited to 1kW in low line and 2kW in high line.
If you wish to increase the power to 3.3kW, I suggest making your own board based on this evaluation board, as customizing it to fit 3.3kW is very unlikely to be possible.
https://www.infineon.com/cms/en/product/evaluation-boards/eval_2kw_48v_char_p7/
Please note that it is industrial qualified, not automotive.
Even if the power is quite lower than the target 3.3kW, I suggest using the eval_2kw_48v_char_p7 board, as it is a single board that supports all your requirements except the power.
From there, you could develop a higher-powered board with higher-rated components.
Best regards,
Pablo
