Floyd Self-test in Voltage Regulators

Floyd Self-test in Voltage Regulators from the book Electronic Devices Conventional Current Version, 9th edition by Thomas L. Floyd.

Floyd Self-test in Chapter 17 of Electronic Devices

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

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

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