Matthew Kerwin
::
Circuits Problems
–
Step Response
1V
5kΩ
2µF
-2mA
5kΩ
v
c
(0
-
) = 1 V
;
i
c
(0
+
) = 0.2 mA
v
c
(∞) = 10 V
;
i
c
(∞) = 0 mA
τ = 10 ms
v
c
(t) = 10 - 9e
-100t
[V] ; t ≥ 0
time for v
c
to reach 0V:
never
i
c
(t) = 1 + 0.2e
-100t
[V] ; t ≥ 0
time for i
c
to reach 0A:
never, but 50ms is close