EE1111 Lab Manual-Diploma - Lab 5

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University of New South Wales *

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1111

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Electrical Engineering

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Jan 9, 2024

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docx

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Page i Diploma Program Course EE1111 LABORATORY MANUAL #5 Electrical and Telecommunications Engineering School of Electrical Engineering and Telecommunications Student Name: …………………… Student ID: …………………………

Contents Lab 5: First-order circuits .......................................................................................................... 3 Aims of this experiment ............................................................................................................ 3 Videos and guides for review .................................................................................................... 3 Lab 5: Pre-Lab work .................................................................................................................. 4 Lab 5: Part B. Hardware Explanation ........................................................................................ 4 Lab 5: Part C: Simulation and Discussion .................................................................................. 9 Required components ............................................................................................................ 9 I. RC transients – First measurements ................................................................................ 9 Page ii

Lab 5: First-order circuits Aims of this experiment The aim of this lab experiment is to examine the following features of first-order circuits: 1 Setup of the signal generator and oscilloscope for transient circuit measurements 2 Transient voltages and currents in simple RC circuits. Videos and guides for review List of suggested videos : Signal generator Oscilloscope List of suggested guides from Appendix:  Signal/Function generator  Oscilloscope Page iii

Lab 5: Pre-Lab work Make sure you complete the online quiz for Lab 5 before attending your session. Note that this quiz can be found in Moodle in the Laboratory section. Lab 5: Part B. Hardware Explanation Please complete all the tasks given in this section during the lab session. Do not forget to watch the related lab videos and guides that are suggested for this lab experiment. 1. Annotate the diagram in Figure 5.2, on the next page, to show how you would set up the circuit in Figure 5.1 if you were in the lab. Assume that we wish to measure the transient voltage across L using the oscilloscope and want to measure the voltage of our source (signal generator) for this experiment. You may copy the image in Figure 5.2 into MS Paint, add your annotations, and then copy the annotated image back into this document. Refer to the Preface section in the Online Lab Manual for an example annotated image. The annotation in Figure 5.2 must show: (10 marks)  The components on the picture of the breadboard (use dark blue colour for all components).  Connections on the picture of the breadboard in red or black (or any other relevant colour) depending on the colour of the cable or wire insulation that you would use in a lab.  The cable connections between each piece of equipment and the breadboard and/or the components on the breadboard. Also, be prepared to explain to the lab demonstrator what connection type you would use at each end of the cable (i.e. banana plug, BNC, alligator clamp, etc.). It may be helpful to add text descriptions of this to your diagram. Figure 5.1: An RL circuit to observe the transient behaviour with the oscilloscope. Some helpful tips with this exercise are:  Ensure that annotated lines are thick enough to be easily seen, but not too thick that it becomes difficult to see what breadboard holes you are connecting wires to. Ensure that you understand why you have connected equipment in the particular configuration as lab demonstrators may ask you this question. Page 4

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