06-08-2013, 12:41 PM
FULL WAVE RECTIFIER
Aim
1. To design a Full wave rectifier with and without simple capacitor filter.
2. To measure the DC voltage under load and ripple factor and to compare with calculated
values.
Full wave rectifier
(i) Without Capacitor
1. Test your transformer: Give 230v, 50Hz source to the primary coil of the transformer
and observe the AC waveform of rated value without any distortion at the secondary of
the transformer.
2. Connect the full wave rectifier as shown in figure.
3. Measure the Vdc & Vac using DC and AC Voltmeters.
(ii) With capacitor:
1. To plot ripple peak-to-peak voltage Vs. Idc to choose C a ripple factor of 0.15 is assumed.
2. To get a variable load resistance a number of 500Ω, 5W of resistance are to be connected
in parallel. Hence Idc = Vdc /( N X 500). Where N is number of 500Ω resistances
connected in parallel.
3. Plot the graph Idc Vs ripple peak to peak.
4. The above steps are repeated for the various values of capacitance.
Result
Thus the Full wave rectifier is designed with and without capacitor filter and the
corresponding dc output voltages and the ripple factors are measured and verified with the
theoretical values.