ECET 220 ECET220 Week 5 Lab Solution

ECET 220 ECET220 Week 5 Lab Solution

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ECET 220 Week 5 Lab Inverting and Noninverting Op-Amp Circuits

Objectives:

  1. 1.         Given the schematic diagram of an inverting amplifier circuit, through theoretical, simulation and circuit construction analysis, explore the characteristics of the amplifier in inverting configuration
  2. 2.         Given the schematic diagram of a noninverting amplifier circuit, through theoretical, simulation and circuit construction analysis, explore the characteristics of the amplifier in noninverting configuration
  3. 3.         For a pre-determined voltage gain value, design an inverting amplifier circuit to produce the expected gain
  4. 4.         For a pre-determined voltage gain value, design a noninverting amplifier circuit to produce the expected gain

 

Results:

 

O n the inverting amplifier, the output and input signals are out of  phase 180° while on the noninverting amplifier the output and  input signals are in phase. In the simulated and constructed circuit analyses, there was saturation of the output voltages from  5V, resulting in a significant drop in the circuit’s gain – At 9V -2.7 to -1.66 gain drop for the inverting amplifier and 3.70 to 1.66 gain drop for the noninverting amplifier. In addition, given a value for gain and utilizing the gain formula it was possible to design amplifier circuits to achieve the specified gain.

 

Conclusions:

As theorized, that gain of the inverting amplifier is inverted and the input and output signals are out of phase 180° and the that of the noninverting amplifier is not with input and output signals being in phase with each other. Actual amplifiers do demonstrate saturation of the output voltage and do not behave  ideally and as such experience a significant drop in gain at saturation.


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