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ITE Products : English : EB-2000 : EB-113 Semiconductor Fundamentals 3

EB-113 Semiconductor Fundamentals 3 EB-113 Semiconductor Fundamentals 3

The EB 113 is a single board comprehensive instructional module designed to teach basic concepts of Industrial Semiconductors to technology students. The module can be operated as a stand-alone unit or integrated to the newly developed EB-2000 Computer Managed Laboratory. The module contains experimental circuits with which the student performs a number of conceptual experiments at various levels of difficulty- Manual or computer driven fault-finding exercises and testing are available when the module is interconnected to the EB-2000 system, providing valuable experience in the training and diagnosis of faults. Test equipment, when used, attaches to the board via 2mm jacks, placed at various points around the circuits. Students are required to do only a minimal amount of wiring so training time is maximised. A comprehensive student manual is provided with each training module. The manual correlates to the exercises to convey concepts relating to the technologies covered, allowing focus on specific performance objectives.

Description

The EB-113 module is designed so students will spend the maximum time on the experiments and practice drills for testing comprehension and troubleshooting. The module also ensures that students use their time more efficiently. The printed circuit boards are pre-wired so that set-up time is minimal. For operation the module is connected to a PUZ-2000. To facilitate the exercises, all the major signals are brought out on-board with 2mm jacks for tests and interconnections. The student has only to plug-in the appropriate patching cords and shorting plugs in order to perform the recommended experiments. The boards also come equipped with "black boxes" containing components used in the fault-finding and practice modes, components that should not be visually identified by the trainee.

OBJECTIVES
  • Measure and sketch the optocoupler characteristics (output current as a function of input current).
  • Examine the frequency response of the optocoupler.
  • Examine the isolating features of the optocoupler.
  • Troubleshoot the optocoupler.
  • Understand P.U.T. operation and biasing.
  • Measure P.U.T. characteristics and determine P.U.T. parameters (voltage, current).
  • Construct P.U.T. oscillator.
  • Troubleshoot P.U.T. circuits.
  • Understand the internal structure of 555 timer and its basic operation principles.
  • Construct a stable multivibrator using a 555 timer.
  • Construct and trigger monostable
  • Multivibrator built from 555 timer.
  • Troubleshoot 555-timer circuit.
  • Understand the internal structure of triac and its condition for operation.
  • Measure triac typical parameters.
  • Understand triac's phase control circuit principle.
  • Construct light dimmer with triac.
  • Troubleshoot triac circuits.
  • Identify the test points in the complete circuit.
  • Measure key voltages in the circuit.
  • Use signal tracing to isolate defective stages or blocks.
  • Locate faulty components within a stage.
RECOMMENDED EXPERIMENTS
  • Opto Coupler
  • Programmable Unijunction Transistor (P.U.T)
  • 555 Timer.
  • Triac.
  • Troubleshooting Basic Industrial Circuits.
REQUIRED ACCESSORIES
  • DL-20 Standard set of 2mm Patching Cords and Shorting Plugs
REQUIRED MEASURING EQUIPMENT
  • 20MHZ Dual Trace Oscilloscope
  • Digital Multimeter 3-1/2 Digits
  • 2.2MHZ AM/FM Function T Generator
MANUAL
  • Student and instructor manuals, written by pedagogues and electronics professionals, support every stage of the learning and teaching process.

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