Fundamentals of Electronics: Diodes II
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Questions and Answers

What is the function of the rectifier in a basic DC power supply?

  • Eliminates fluctuations in the rectified voltage
  • Maintains a constant dc voltage for variations in the input line voltage or in the load
  • Converts the ac input voltage to a pulsating dc voltage (correct)
  • Changes ac voltages based on the turns ratio between the primary and secondary

    • What is the role of the filter in a basic DC power supply?

  • Eliminates fluctuations in the rectified voltage and produces a relatively smooth dc voltage (correct)
  • Converts the ac input voltage to a pulsating dc voltage
  • Maintains a constant dc voltage for variations in the input line voltage or in the load
  • Changes ac voltages based on the turns ratio between the primary and secondary

    • What does a regulator circuit do in a basic DC power supply?

  • Changes ac voltages based on the turns ratio between the primary and secondary
  • Converts the ac input voltage to a pulsating dc voltage
  • Maintains a constant dc voltage for variations in the input line voltage or in the load (correct)
  • Eliminates fluctuations in the rectified voltage and produces a relatively smooth dc voltage

    • During which phase of its cycle is the diode forward-biased in a half wave rectifier?

    <p>When the sinusoidal input voltage (Vin) goes positive</p> Signup and view all the answers

    What happens when the input voltage goes negative during its cycle in a half wave rectifier?

    <p>The diode is reverse-biased</p> Signup and view all the answers

    What is the purpose of the transformer in a basic DC power supply?

    <p>To change ac voltages based on the turns ratio between the primary and secondary</p> Signup and view all the answers

    What is the role of the filter in a basic DC power supply?

    <p>To eliminate fluctuations in the rectified voltage and produce a relatively smooth dc voltage</p> Signup and view all the answers

    What happens when the input voltage goes negative during its cycle in a half wave rectifier?

    <p>The diode is reverse-biased</p> Signup and view all the answers

    What is the function of the rectifier in a basic DC power supply?

    <p>To convert ac input voltage to a pulsating dc voltage</p> Signup and view all the answers

    What does a regulator circuit do in a basic DC power supply?

    <p>Maintains a constant dc voltage for variations in the input line voltage or in the load</p> Signup and view all the answers

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