Matthew Kerwin
::
Circuits Problems
–
Step Response
-5V
5kΩ
2µF
0.5µF
2V
5kΩ
v
c
(0
-
) = 5 V
;
i
c
(0
+
) = 1 mA
v
c
(∞) = -2 V
;
i
c
(∞) = 0 mA
τ = 12.5 ms
v
c
(t) = -2 + 7e
-80t
[V] ; t ≥ 0
time for v
c
to reach 0V: 15.66ms
i
c
(t) = 5 + 1e
-80t
[V] ; t ≥ 0
time for i
c
to reach 0A:
never, but 62.5ms is close