Description

The EB-141 is a single board, comprehensive instructional module designed to teach basic concepts of power supplies to technology students.

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

Objectives

• Connect the half wave rectifier circuit

• Use the oscilloscope to determine the input and output waveforms of the half wave rectifier

• Use the oscilloscope to determine the output voltage waveform with a capacitate filter

• Determine the value of the ripple voltage

• Complete objectives 1,2,3, and 4 for the full wave rectifier circuit

• Complete objectives 1,2,3, and 4 for the bridge rectifier circuit

• Determine the output voltage waveforms for the Dual Complimentary Rectifier Circuit

• Determine the effect of loading on the amount of ripple voltage of rectifier circuits

• Troubleshoot rectifier circuits

• Connect the basic transistor regulator circuit

• Use the oscilloscope to determine the output waveforms of the regulator circuit

• Determine the output voltage characteristics of the regulator circuit for different loads

• Determine the characteristics of the regulator circuit that has feedback and current limiting

• Connect the fixed voltage regulator circuit to an electronic load

• Use the oscilloscope to determine the ripple voltage at the output of the monolithic regulator circuit

• Measure the DC output voltage for different loads

• Determine the voltage regulation for different loads

• Plot a graph that shows how the voltage regulation changes as load voltage changes

• Determine how the DC output changes as the load current is changed

• Plot the regulator output voltage characteristic VL-IL curve

• Understand the regulator operation when connected as an electronic current load

• Use the oscilloscope to obtain the waveform throughout the step-down switching voltage regulator circuit

• Measure the duty cycle

• Check the influence of frequency on ripple for step-down regulator

• Determine the characteristic output V-I curve of the step-down regulator

• Connect the step-up switching voltage regulator from basic circuits

• Obtain the waveforms throughout the step-up switching voltage regulator

• Check influence of frequency on ripple for step-up regulator

• Determine how the output voltage change as the frequency is changed

• Plot the output VL-IL characteristic curve of the step-up switching voltage regulator circuit

• Connect the hybrid voltage regulator that consists of the switching and linear voltage regulators

• Construct the output characteristic VL-IL curve from measured values

• Measure the ripple voltage of the hybrid regulator

• Compare the ripple and output curves of the linear switching and hybrid regulators

• Identify the test points as a complete circuit

• Measure key voltages in a circuit

• Use the oscilloscope to trace the signal and to observe waveforms in the different points in the circuit

• Isolate a defective stage

• Locate faulty components

Recommended Experiments

1. Unregulated power supplies

2. Transistor regulator

3. Monolithic Linear Regulator

4. Basic Switching Voltage Regulators

5. Hybrid Voltage Regulator

6. Troubleshooting voltage regulators circuit

7. Components and Accessories