- #1
Roy Fokker
- 8
- 0
Homework Statement
Find DEQ, circuit for time t>0.
Homework Equations
Ic= CdVc/dt
Vl=LdiL/dt
The Attempt at a Solution
At T=inf
L Short , C Open
IL(inf)=4mA, VL(inf)=0, Ic(inf)=0, Vc(inf)=0
T=0-
All at 0
T=0+
L=Open C=Short
IL(0+)=0, VL(0+)=0, Ic(0+)=4mA, Vc(0+)=0
20v=L diL/dt + Vc + iL5k
I need to make a sub for iL but I feel that I am wrong in my subbing in.
iL= Vc/2k + C dVc/dt
I keep wanting to just say iL=Vs/5k but I need to account for the transient effect of the cap charging and discharging... it just seems odd not to include R1 in iL since that's how I came up with it in the first place.