Electronic Systems
Block B25

 

  
  Duration:
48 hours

  
  Course Prerequisites:
DC Principles (Block A21)
Basic Electronic Circuits (Block B24)
Basic Industrial Math (Block X21)
Basic Industrial Math (Block X21)
Basic Industrial Math (Block X21)

  
  What Students Learn:
In this block, the trainee will see how simple circuits are modified (enhanced, improved upon) to produce complex circuits and systems for industrial applications. This is an important subject. The trainee will now begin to see how two or more basic and complex circuits are tied together to create an industrial electronics system. The emphasis will be away from what the individual schematic looks like, but to a "functional block diagram" concept. The trainee is shown large-scale schematics of which particular functional circuits will be identified and discussed. These functional circuits are treated as "blocks," then all tied together. The courses highlight the input and output conditions of an entire system and for each functional block.

  
  Special Notes:
This updated course replaces Electronic Systems, Block B05. Each study unit contains a progress exam.

  
  Components:
Electronic Devices and Amplification (086045)
Audio and RF Circuits (086046)
Oscillators, Feedback, and Waveforms (086047)
Electronic Power Supply Systems (086048)
Industrial Amplification Systems (086058)
Servo and Control Systems (086059)
Pulse and Logic Circuits (086060)
Programmable Controllers and Microprocessors (086061)

  
 

 

 
 086045
Electronic Devices and Amplification

Objectives:

  • Calculate the gain of an amplifier circuit.
  • Calculate voltage, current, and impedance relationships in transformers.
  • Convert power and voltage gain to decibels.
  • Determine the resistance values needed in an impedance-matching pad.
  • Identify the characteristics of amplifying devices in various configurations.
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     086046
    Audio and RF Circuits

    Objectives:

  • Describe how sound intensity is measured.
  • Compare the advantages of AM and FM transmissions.
  • Describe how narrow-band FM is used in industrial communications.
  • Explain the advantages of coaxial cable over copper wire as a transmission medium.
  • Describe how pushbutton dialing can be used in industrial systems.
  • Explain the different methods used to assemble common-emitter amplifiers.
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     086047
    Oscillators, Feedback, and Waveforms

    Objectives:

  • Identify the basic types of oscillator circuits.
  • Discuss the various feedback circuits used in oscillators.
  • Identify particular types of oscillator output waveforms.
  • Recognize specific applications of oscillator and waveform generator circuits.
  • Understand how a phase-locked loop works as a frequency synthesizer.
  • Explain how a 555 integrated circuit timer / oscillator produces a square wave.
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     086048
    Electronic Power Supply Systems

    Objectives:

  • Explain the basic function of rectifiers.
  • Describe how half-wave and full-wave rectifier circuits operate.
  • Determine the output voltage from various rectifier circuits.
  • Calculate the percentage of voltage regulation in a power supply.
  • Explain the operation of filters and bleeder resistors in power supplies.
  • Describe the purpose of a voltage divider network to the output of a power supply.
  • Explain the operation of electronic power supplies.
  • Describe the operation of several commonly used industrial power supplies.
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     086058
    Industrial Amplification Systems

    Objectives:

  • Recognize the difference between a power and voltage amplifier.
  • Work with V-MOS, BiFET, Darlington pair, push-pull, and complementary amplifiers.
  • How to use amplifiers to obtain the desired phase angle relationship when wiring a two-phase induction motor.
  • Analyze an OP-amp on the basis of the virtual ground or summing point.
  • Understand how an amplifier introduces distortion and noise in an amplified signal.
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     086059
    Servo and Control Systems

    Objectives:

  • Discuss the basic operation of servo systems.
  • Relate the differences between open-loop and closed-loop systems.
  • Identify commonly used symbols for servo system components and devices.
  • Point out applications of servo systems in industry.
  • Calculate the gain of a servo system.
  • List the various types of servo systems and their basic purpose or function.
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     086060
    Pulse and Logic Circuits

    Objectives:

  • State the various characteristics of pulse-generating circuits.
  • Cite typical industrial applications of pulse generators.
  • Indicate the advantages of various logic families.
  • Discuss how digital control signals are processed.
  • Develop a logic diagram using typical logic gate symbols.
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     086061
    Programmable Controllers and Microprocessors

    Objectives:

  • Describe the typical industrial applications of programmable controllers.
  • State the function of the various blocks of a microprocessor system.
  • Indicate typical input/output (I/O) equipment and devices.
  • Identify the commonly used programming languages.
  • Develop a simple program.
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