3. Analog Circuits

Power Supplies — Quiz

Test your understanding of power supplies with 5 practice questions.

Practice Questions

Question 1

A linear power supply utilizes a series pass transistor for voltage regulation. If the input voltage to the regulator drops significantly, causing the transistor to operate outside its active region, what is the most likely consequence for the output voltage?

Question 2

Consider a full-wave bridge rectifier circuit with an input AC voltage of $24\text{ V}_{\text{RMS}}$ and a load resistance of $100\ \Omega$. Assuming ideal diodes, what is the approximate average DC voltage across the load?

Question 3

In a switching power supply, what is the primary mechanism used to achieve voltage regulation, unlike the dissipative method of linear regulators?

Question 4

When designing a power supply for a sensitive electronic circuit, what is the most critical factor to consider regarding ripple voltage?

Question 5

A power supply circuit incorporates a Zener diode in a shunt regulator configuration. If the input voltage to the Zener regulator increases significantly beyond its breakdown voltage, what is the primary role of the series current-limiting resistor?