hey guys i am going to design a battery charger using buck topology my input voltages are 385 volts dc and output would be 108-145 volts DC since ineed to charge a battery back of 10 batteries with atleast output current of 9AMPS will this topology work if not then should i go for isolated topology and i need help on the selection of inductor value vin-vout=L di/dt there is question mark on what value of vout should be kept and how to select dt