Module 1.3

Power Supply Basics Quiz

Try this quiz, based on the information you can find in Power Supplies Module 1. Submit your answers and see how many you get right. If you get any answers wrong, just follow the hints to find the right answer and learn about Power Supplies as you go.

1.

psu-fig-1-3-1.gif
Refer to Fig. 1.3.1.What is the function of block B?

2.

Refer to Fig 1.3.1. What is the function of block A ?

3.

Refer to Fig 1.3.1. What will be the approximate value of the DC component of the waveform at the output of block A?

4.

psu-fig-1-3-2.gif
Refer to Fig 1.3.2. If input B is more positive than input A, which diodes will be conducting?

5.

Refer to Fig 1.3.2. If D4 were to go short circuit, what would be the effect on the operation of the circuit?

6.

What is the action of the reservoir capacitor in a basic power supply circuit?

7.

Which of the following is an advantage of using a L C low pass filter rather than a RC low pass filter in a power supply?

8.

psu-fig-1-3-3.gif
Refer to Fig 1.3.3. What is the power dissipated in R1?

9.

Refer to Fig 1.3.3. What will be the approximate value of DC across C1?

10.

Refer to Fig 1.3.3. What is the reactance of C2 at the ripple frequency?

 

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