EB-111 Semiconductor Fundamentals 1
Innovative Technologies in Education (ITE)
EB-111 Semiconductor Fundamentals
The EB-111 is a single board comprehensive instructional module
designed to teach basic concepts of Semiconductor Fundamentals 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 driver 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. 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-111 module is designed so that students will spend the maximum
time on the experiments and practice drills for testing comprehension
and troubleshooting. The PCB has the dimensions 234.5x200mm. For
operation the module is connected to a PUZ-2000. The student can
thus see the schematic and work with the components. To facilitate
the exercises, all the major signals are brought out on-board with
2mm jacks for tests and interconnections. The ICs and the transistors
are mounted on sockets, enabling easy replacement. 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 the diode voltage and current when the diode is forward
biased.
Measure the diode voltage and current when the diode is reverse
biased.
Plot the characteristic curve of a diode.
Determine the dynamic resistance of a diode.
Determine the model of a diode that is reverse biased.
Use an oscilloscope to display the input and output waveforms of
a rectifier.
Determine if the diode is acting like an ideal diode.
Display the voltage transfer curve on the oscilloscope.
Plot the characteristic curve of a zener diode.
Determine the zener breakdown voltage from measured values used
to plot the characteristic curve.
Test a zener diode regulator circuit
Determine the voltage regulation from measured values.
Plot the input characteristic curves of a transistor from measured
values.
Determine the value of current gain (B) from measured values.
Test a common emitter circuit to determine if it is a constant current
source.
Plot the family of output characteristic curves from measured values.
Identify the active saturation and cut-off regions on the family
of the characteristic curve.
Determine the current gain from the output family of curves.
Determine the base current from voltage measurements across a known
value resistor.
Determine the voltage gain of a transistor amplifier from measured
values.
Determine the current gain of a transistor amplifier from measured
values.
Determine the power gain from the voltage and current gain.
Determine the reason that the output voltage waveform is distorted.
Determine the frequency response of a transistor amplifier from
measured values.
Measure the rise time of a transistor amplifier.
Test an inverting amplifier.
Determine the voltage gain of the emitter-follower circuit.
Test the emitter follower in a voltage regulator circuit.
Determine the regulation of the emitter-follower in a regulator
circuit.
Obtain the input and output wave-forms of a push-pull amplifier.
Identify the test points in the complete circuit
Measure key voltages in the circuit.
Use signal tracing to isolate defective stages for blocks.
Locate faulty components within a stage.
RECOMMENDED EXPERIMENTS
Junction Diode Characteristics.
Diode as a Rectifier.
;Zener Diode Regulator.
Bipolar Transistor Characteristics.
Basic Transistor Amplifier I.
Basic Transistor Amplifier II.
Emitter Follower and Push-Pull Amplifier
Troubleshooting Semiconductor 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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