Question

Question 1 220 Vrms 50 Hz T 10:1 B CR Figure 1 Figure 1 shows the circuit diagram for a simple d.c. power supply. a. Identify the type of rectifier circuit represented in figure 1 and explain the operation of the circuit with reference to the function of each component within the circuit. b. Sketch to scale the voltage across R as a function of time showing its relationship to the secondary voltage from the transformer. Question 2 A 5.0V stabilized power supply is required from a 12V d.c. input which uses a stabilising resistor of 1Kk2. The maximum power rating of the zener diode is 2W. If a load resistor of 1k? is connected across the zener diode, a. Draw the circuit diagram and calculate: b. The maximum current flowing in the zener diode c. The load current. d. The total supply current.

          Question 1
220 Vrms
50 Hz
T
10:1
B
CR
Figure 1
Figure 1 shows the circuit diagram for a simple d.c. power supply.
a. Identify the type of rectifier circuit represented in figure 1 and explain the operation of the circuit
with reference to the function of each component within the circuit.
b. Sketch to scale the voltage across R as a function of time showing its relationship to the secondary
voltage from the transformer.
Question 2
A 5.0V stabilized power supply is required from a 12V d.c. input which uses a stabilising resistor of
1Kk2. The maximum power rating of the zener diode is 2W. If a load resistor of 1k? is connected
across the zener diode,
a. Draw the circuit diagram and calculate:
b. The maximum current flowing in the zener diode
c. The load current.
d. The total supply current.

Question 1
220 Vrms
50 Hz
T
10:1
B
CR
Figure 1
Figure 1 shows the circuit diagram for a simple d.c. power supply.
a. Identify the type of rectifier circuit represented in figure 1 and explain the operation of the circuit
with reference to the function of each component within the circuit.
b. Sketch to scale the voltage across R as a function of time showing its relationship to the secondary
voltage from the transformer.
Question 2
A 5.0V stabilized power supply is required from a 12V d.c. input which uses a stabilising resistor of
1Kk2. The maximum power rating of the zener diode is 2W. If a load resistor of 1k? is connected
across the zener diode,
a. Draw the circuit diagram and calculate:
b. The maximum current flowing in the zener diode
c. The load current.
d. The total supply current.

Added by Lisa R.

Question

Please give Ace some feedback