Matthew Kerwin
::
Circuits Problems
–
Step Response
1V
2kΩ
0.5µF
5mA
1kΩ
v
c
(0
-
) = -1 V
;
i
c
(0
+
) = -1 mA
v
c
(∞) = 5 V
;
i
c
(∞) = 0 mA
τ = 0.5 ms
v
c
(t) = 5 - 6e
-2000t
[V] ; t ≥ 0
time for v
c
to reach 0V: 0.091ms
i
c
(t) = -1 - 1e
-2000t
[V] ; t ≥ 0
time for i
c
to reach 0A:
never, but 2.5ms is close