Matthew Kerwin
::
Circuits Problems
–
Step Response
20V
2kΩ
10µH
5mA
2kΩ
i
c
(0
-
) = -10 mA
;
v
c
(0
+
) = -20 V
i
c
(∞) = 5 mA
;
v
c
(∞) = 0 V
v
c
(t) = 0 - 20e
-t
[V] ; t ≥ 0
time for v
c
to reach 0V:
never, but 25ms is close
i
c
(t) = -20 - 15e
-t
[V] ; t ≥ 0
time for i
c
to reach 0A: 5.493ms