QUESTION 3 3.1 Draw a neat, labelled circuit diagram of a power supply using the following components: A transformer A bridge rectifier A load resistor Two capacitors An inductor 3.2 The following information is available for the power supply circuit in QUESTION 3.1 above:
Vdc=150V
Vr(RMS)=10V
R_(L)=15k\Omega
L=2H
C_(2)=100\mu F
R=150\Omega
f=50Hz
Calculate the following: 3.2.1 The output DC voltage (2) 3.2.2 The output ripple voltage 3.2.3 The ripple factor across
C_(1)
(2) 3.2.4 The ripple factor across
C_(2)
(2) 3.3 Give TWO applications of a varactor (varicap diode).