Project 1

ans:

from the state space model we can find the values of l1,l2,c1,c2,r

vs=10v

vo=20v

f=50khz

ΔI1=ΔI2 = 0.2 A,

Δv1=Δv2 =0.2V.

from state space model

vo/vin=20/10=d/1-d

d=2/3

vs=vl1=10v

l1=l2=vs*d/deltail1*fs

=10*0.66/50000*0.2=6.66*10^-4

c1=c2=d/r*fs*(delta vc1/vo)

0.6/20*50000*0.01=6.6*10^-5

2.ans:

vo=io*R

R=vo/io=20

vo=k*vs/(1-k)

k=0.5

vc1=-vo/k=20/0.5=40

Is=-io*k/1-k

is=1*0.5/1-0.5=1

from the above parms

l1=-vs(vs-vc1)/f*deltai1*vc1=7.5mh

l2=-vo(vc1+vo)/f*deltai2*vc1=2.5mh

c1=is*vs/(vs-vo)*deltav1*f=10mf

c2=-vo*(1-k)/8*f^2*deltav2*l2=0.25mf

from the above parms cuk conv is designed:

from the cmparision both can be used to boost the voltage and can achive the required output but sepic is has more stable voltage.