Floyd Self-test in Voltage Regulators

(Last Updated On: December 9, 2019)

This is the Self-test in Chapter 17: Voltage Regulators from the book Electronic Devices Conventional Current Version, 9th edition by Thomas L. Floyd. If you are looking for a reviewer in Electronics Engineering this will definitely help you before taking the Board Exam.

Floyd Self-test Chapter 17 Topic Outline

• Floyd Self-test in Voltage Regulation
• Floyd Self-test in Basic Linear Series Regulators
• Floyd Self-test in Basic Linear Shunt Regulators
• Floyd Self-test in Basic Switching Regulators
• Floyd Self-test in Integrated Circuit Voltage Regulators
• Floyd Self-test in Integrated Circuit Voltage Regulator Configurations

If you are looking for the Multiple Choice Questions in Floyd’s Electronic Devices proceed to

Start Practice Exam Test Questions

Choose the letter of the best answer in each questions.

1. In the case of line regulation,

(a) when the temperature varies, the output voltage stays constant

(b) when the output voltage changes, the load current stays constant

(c) when the input voltage changes, the output voltage stays constant

(d) when the load changes, the output voltage stays constant

2. In the case of load regulation,

(a) when the temperature varies, the output voltage stays constant

(b) when the input voltage changes, the load current stays constant

(c) when the load changes, the load current stays constant

(d) when the load changes, the output voltage stays constant

3. All of the following are parts of a basic voltage regulator except

(a) control element

(b) sampling circuit

(c) voltage-follower

(d) error detector

(e) reference voltage

4. The basic difference between a series regulator and a shunt regulator is

(a) the amount of current that can be handled

(b) the position of the control element

(c) the type of sample circuit

(d) the type of error detector

5. In a basic series regulator, is determined by

(a) the control element

(b) the sample circuit

(c) the reference voltage

(d) answers (b) and (c)

6. The main purpose of current limiting in a regulator is

(a) protection of the regulator from excessive current

(b) protection of the load from excessive current

(c) to keep the power supply transformer from burning up

(d) to maintain a constant output voltage

7. In a linear regulator, the control transistor is conducting

(a) a small part of the time

(b) half the time

(c) all of the time

(d) only when the load current is excessive

8. In a basic shunt regulator, is determined by

(a) the control element

(b) the sample circuit

(c) the reference voltage

(d) answers (b) and (c)

9. In a switching regulator, the control transistor is conducting

(a) part of the time

(b) all of the time

(c) only when the input voltage exceeds a set limit

(d) only when there is an overload

10. The LM317 is an example of an IC

(a) three-terminal negative voltage regulator (b) fixed positive voltage regulator

(c) switching regulator

(d) linear regulator

(e) variable positive voltage regulator

(f ) answers (b) and (d) only

(g) answers (d) and (e) only

11. An external pass transistor is used for

(a) increasing the output voltage

(b) improving the regulation

(c) increasing the current that the regulator can handle

(d) short-circuit protection

Complete List of Floyd Self-test in Electronic Devices per topic

Check your work.