DCDC-400-800 V to 12V System requriement

[Muthuraj]

Need of DCDC- Bidirectional which will be used in 400V/800V EV system, Kindly share any reference design which we can have for headstart on this design.

1. V Max = 420V-800V -Vin to 12V Vout (Vice versa)
2. I Max = 300Amps
3. P Max = 3.6 KW