A ramp voltage V(t) = 100V is applied to an RC differentiating circuit...
Ω and C = 10μF.
The circuit diagram is as follows:
```
+---------R---------+
| |
V_in C
| |
+--------------------+
|
V_out
```
We can analyze the circuit using the following steps:
1. Find the expression for the output voltage V_out(t) in terms of the input voltage V_in(t).
2. Calculate the time constant τ = RC.
3. Find the derivative of the input voltage dv/dt.
4. Find the maximum output voltage V_out(max) that occurs when dv/dt is maximum.
5. Find the time t_max at which V_out(max) occurs.
Step 1:
The output voltage V_out(t) is given by the formula:
V_out(t) = -RC(dV_in/dt)
Substituting the given values of R and C, we get:
V_out(t) = -50(dV_in/dt)
Step 2:
The time constant τ = RC = 5kΩ x 10μF = 50ms.
Step 3:
The derivative of the input voltage V_in(t) is given by:
dV_in/dt = 1V/s
Step 4:
The maximum output voltage V_out(max) occurs when the derivative dv/dt is maximum. Since dv/dt is constant in this case, V_out(max) is simply:
V_out(max) = -50(dV_in/dt) = -50(1V/s) = -50V/s
Step 5:
The time t_max at which V_out(max) occurs can be found by setting the derivative of V_out(t) to zero and solving for t:
dV_out/dt = -50(d^2V_in/dt^2) = 0
d^2V_in/dt^2 = 0
Since dV_in/dt is constant, its second derivative is zero. Therefore, t_max can be any value.
Therefore, the output voltage V_out(t) is:
V_out(t) = -50(dV_in/dt) = -50(1V/s) = -50V/s
And it remains constant for all values of t.