Description

The EB-114 is a single board, comprehensive instructional module designed to teach basic concepts of Optoelectric Semiconductors to technology students.

The module can be operated as a stand-alone unit or integrated to EB-2000 Computer Managed Laboratory.

Objectives

• Understand the theoretical explanation of the LDR (Light Dependent sister), its structure and characteristics.

• Assemble the circuits for drawing the LDR characteristics as function of light intensity.

• Use the oscilloscope to obtain the LDR characteristics Be familiar with LDR applications

• Understand the theoretical explanation of the PHOTODIODE, its structure and characteristics

• Assemble the circuits for drawing the PHOTODIODE characteristics as function of light intensity

• Use the oscilloscope to obtain the PHOTODIODE characteristics

• Be familiar with the photovoltaic effect

• Be familiar with the PHOTODIODE’s main applications

• Understand the theoretical explanation of the PHOTOTRANSISTOR, the structure and its characteristics

• Assemble the circuits for drawing the PHOTOTRANSISTOR characteristics

• Understand the phototransistor circuits, operating as an lifier and in switching mode <

• Use the oscilloscope to obtain the PHOTOTRANSISTOR characteristics

• Be familiar with the PHOTOTRANSISTOR applications

• Understand the theoretical explanation, its structure and its characteristics

• Assemble the circuits for drawing the LED characteristics

• Use the oscilloscope to obtain the LED characteristics

• Be familiar with the LED’s applications

• Understand the theoretical description of the Incandescent Lamp

• Understand the description of the Incandescent Lamp according to lamp construction

• Bulb shape and diameter

• Filament types

• Assemble the circuit for drawing the curve of the lamp’s resistance as function of the voltage applied to the Incandescent Lamp

• Measure the relative light intensity

• Measure the effect of the preheating current

• Understand and be familiar with the alpha numeric display

• Understand the principles of operation and basic circuits of numeric displays on decimal and hexadecimal counters

• Assemble practical circuits using up/down counters and alphanumeric display

• Understand the theory, structure, and operating principle of the LCD component

• Understand and be familiar with LCD as an effect of voltage on display quality

• Effect of backplane frequency on display quality

• Test the various stages of a relatively complex circuit on the faults in electro-optic circuits

• Locate the fault within the stage of a circuit

Recommended Experiments

1. Light Dependant Resistor (LDR)

2. Photodiode

3. Phototransistor

4. Light Emitting Diode (LED)

5. Incandescent Lamp

6. Alphanumeric Display

7. Liquid Crystal Display (LCD)

8. Troubleshooting