Diode Rectifier

Load the PSPICE file hwr.sch, Figure 29.

**Figure 29:** Half wave rectifier circuit.
$\begin{figure} \begin{center} \epsfig{file=images/clab5img2.eps}\end{center}\end{figure}$

Exercise:

1.

Simulate the circuit and obtain graphs of the source and load voltages (transient).

Initially the circuit was set with C=1 fF $\approx 0$ , to approximate the effect of no capacitor (unfiltered rectifier).

Lecture Notes: Diode Circuits : Rectifiers

2.

Measure the peak value of the load voltage, and find the DC average load voltage.

3.

Set C=10 $\mu$ F, and simulate again. What is the effect on the load voltage?

4.

Measure the ripple voltage V_r, and the average DC load voltage.

5.

Experiment with different values of C and R_L. What is the effect of each?

ANU Engineering - ENGN2211