Matthew Kerwin
::
Circuits Problems
–
Step Response
10mA
1kΩ
15µH
5µH
-2mA
10kΩ
i
c
(0
-
) = 10 mA
;
v
c
(0
+
) = 100 V
i
c
(∞) = -2 mA
;
v
c
(∞) = 0 V
v
c
(t) = 0 + 100e
-t
[V] ; t ≥ 0
time for v
c
to reach 0V:
never, but 1.875ms is close
i
c
(t) = 100 + 12e
-t
[V] ; t ≥ 0
time for i
c
to reach 0A: 0.672ms