Matthew Kerwin
::
Circuits Problems
–
Step Response
2V
1kΩ
2µF
0.5µF
2.5V
2kΩ
v
c
(0
-
) = 2 V
;
i
c
(0
+
) = 1 mA
v
c
(∞) = -2.5 V
;
i
c
(∞) = 0 mA
τ = 0.8 ms
v
c
(t) = -2.5 + 4.5e
-1250t
[V] ; t ≥ 0
time for v
c
to reach 0V: 0.47ms
i
c
(t) = 2 + 1e
-1250t
[V] ; t ≥ 0
time for i
c
to reach 0A:
never, but 4ms is close