regulator circuit that could be used in a DC power supply design to regulate the output of a rectifier. Determine the suitability of the regulator for a rectifier with the output specifications as given in Table 4. The ripple voltage of the rectifier is 30% of Vpk, and the regulator needs to deliver
Figure Q4.c shows an alternative regulator circuit that could be used in a DC power
supply design to regulate the output of a rectifier.
Determine the suitability of the regulator for a rectifier with the output specifications as
given in Table 4. The ripple voltage of the rectifier is 30% of Vpk, and the regulator
needs to deliver to the load the current of Io mA.
The Zener diode power rating is 2W. The required output voltage is 7.4V.
For the circuit in Figure Q4.c:
determine the required Zener diode voltage Vz;
find a suitable value of the resistor R;
determine the minimum requirement for the transistor power rating PTR.
2) What is the role of the resistor R in this circuit?
Show your working throughout and state any assumptions you may make.
Provide commentary to your design process, and evaluate your design.
![Question
part
Q4.a, b
Q4.a
Q4.b
Parameter
Load current
Io [mA]
Ripple voltage as
percent of peak,
X [%]
Peak rectifier
output voltage
Vpk [V]
Value
100+10F
10+A+B
20+A+B
Table 4
Example:
Student ID=210123456:
F=6
A=1, B=2
A=1, B=2
lo 100+60 160 mA
X= 10+1+2= 12%
Vpk = 20+1+2 = 22V](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F18d2f96a-0c13-4e62-98bb-67a746e0d143%2Fbbf5b04b-915e-474e-b2aa-741526ae70b4%2Fthkd64x_processed.png&w=3840&q=75)
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