Pulse Circuits
Block B07

 

 
  Duration:
42 hours

 
  Course Prerequisites:
Analog Circuit Measurement (Block A23)
Troubleshooting Electronic Equipment and Systems (Block B06)
Basic Industrial Math (Block X21)

 
  What Students Learn:
In this series of lessons, the trainee will become familiar with pulse techniques and their characteristics. The trainee will learn how RC time-constant effects are used in pulse generation. Solid-state and electron-tube pulse generators and the various types of waveforms are covered. The various types of waveshaping circuits are discussed along with the concepts of how timing, triggering, and synchronization are achieved. Practical industrial applications of pulse circuits and the techniques of troubleshooting are covered.

 
  Components:
Pulse Techniques (B0701)
Pulse Generators (B0702)
Waveshaping Circuits (B0703)
Timing (B0704)
Pulse Circuit Applications (B0705)
Troubleshooting Pulse Circuits (B0706)
Progress Examination Booklet (B0720)
Progress Examination (B0721)
Progress Examination (B0722)

 
 

 

 
 B0701
Pulse Techniques

Objectives:

  • Describe the term pulse and how it differs from nonpulse waveforms.
  • Name and explain six terms that specify pulse dimensions.
  • List four ways that pulses are generated or developed.
  • Describe the frequency content or makeup of square waves, rectangular waves, sawtooth, and triangular waves, spikes, and half sine waves.
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     B0702
    Pulse Generators

    Objectives:

  • Review the main methods of generating pulses.
  • Review the concept of time constant and its relationship to pulse circuits.
  • Explain the response of differentiator and integrator circuits to sine waves and pulses.
  • Discuss pulse generation by sine wave clipping.
  • Describe how pulses are developed by the relaxation oscillator, multivibrators, and switching circuits.
  • Describe the operation of the Schmitt trigger.
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     B0703
    Waveshaping Circuits

    Objectives:

  • Explain the operation of circuits for forming square and rectangular waves, sawtooth waves and triangular waves.
  • Tell how pulses are stretched, narrowed, widened, and otherwise shaped or reshaped.
  • Discuss the response of pulses to capacitors, transformers, and inductors.
  • Illustrate how a clamper is used to restore shape to a pulse or a pulse series.
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     B0704
    Timing

    Objectives:

  • Discuss free-running and nonsynchronized pulses.
  • Describe the 555 timer and name its applications.
  • Show examples of using crystals for frequency stabilization.
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     B0705
    Pulse Circuit Applications

    Objectives:

  • Review the uses of pulses in switching circuits.
  • Tell how pulses are used in computers.
  • Explain the concept of how pulses fits into data communication.
  • Discuss digital audio and television techniques.
  • Describe five uses of pulses in industry.
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     B0706
    Troubleshooting Pulse Circuits

    Objectives:

  • Sketch typical oscilloscope waveforms for good pulses.
  • Identify possible causes of trouble while examining photos or sketches of distorted pulses.
  • Show how to use a logic probe in troubleshooting digital pulse circles.
  • Demonstrate the use of a pulse generator in circuit troubleshooting.
  • Describe the steps to troubleshoot resistance welding and other industrial equipment using pulses.
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     B0720
    Progress Examination Booklet

    Objectives:

     
     

     

     
     B0721
    Progress Examination

    Objectives:

     
     

     

     
     B0722
    Progress Examination

    Objectives:

     
         

     

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