Hi i am trying to design a boost converter.
Vinput=1-3.8V
Iinput max = 12.5A
i choosed to duty cycle 0.75.
and 10kHZ
i think like that; max Power input; 3.8V * 12.5A = 47.5, i assume that worst case, my converter be lossless and transmit to power out side. Poutput=Pinput
Pout= 47.5Watt, that means my Output current is Poutput/Voutput = 11.878 A
For this condution my output resistance is V=I*R 4=11.878*R R=0.33676ohm
also i want to max current ripple on inductor 0.5 A for this i choose the indctor
L= [Vinput*(Voutput-Vinput)]/ inductor ripple current*freuency*Vout
L= 0.00015
and choosed very high capacity for eleminate output voltage ripple like 100F.
but in simulation this is not work. i took a 0.17 V output. 9A input current ?
Vinput=1-3.8V
Iinput max = 12.5A
i choosed to duty cycle 0.75.
and 10kHZ
i think like that; max Power input; 3.8V * 12.5A = 47.5, i assume that worst case, my converter be lossless and transmit to power out side. Poutput=Pinput
Pout= 47.5Watt, that means my Output current is Poutput/Voutput = 11.878 A
For this condution my output resistance is V=I*R 4=11.878*R R=0.33676ohm
also i want to max current ripple on inductor 0.5 A for this i choose the indctor
L= [Vinput*(Voutput-Vinput)]/ inductor ripple current*freuency*Vout
L= 0.00015
and choosed very high capacity for eleminate output voltage ripple like 100F.
but in simulation this is not work. i took a 0.17 V output. 9A input current ?