Lab 2. Filters

Objectives

To evaluate active and passive filter circuits using analysis, simulation and circuit measurement

Materials

Diligent Analog Discovery II NI Edition

Waveforms 2015 software (Network Analyzer)

Analog discovery parts kit

NI Multisim workbench

Theory

To be completed by you

Passive Filters

Active Filters

Include circuits of your chosen filters

Procedure

Select a filter design from your textbook. Design, simulate fabricate and test and perform the analysis for your filter.

Complete #1 for one passive filter

Complete #1 for one Active filter

Measure component values an use the measured values for your analysis.

Result (See appendix for an example of results)

Passive Filter

Simulation results of passive circuit

Component

Standard Value

Measured value

Picture showing constructed passive circuit

Measurement results for passive circuit (Network analyzer)

Table 2. Results from passive filter

Result Type

Critical Frequency

Analysis

Simulation

Measurement

Active Filter

Simulation results of active circuit

Component

Standard Value

Measured value

Picture showing constructed active circuit

Measurement results for active circuit (Network analyzer)

Table 2. Results from active pass filter

Result Type

Critical Frequency

Analysis

Simulation

Measurement

Discussion

Compare the three results from each method. What do you believe are the sources of error. Which value do you think is more accurate? Describe the role off rate of your filter.

Conclusion