When wiring up the pop-amp circuits, use the breadboard rails to establish +PVC , -PVC and ground respectively for the circuit. Apply the sinusoidal input directly to the circuit using a cable with connecting clips. Ask the tutor if you are unsure tout t 1. 5 Theory 1.
The computed values required in this lab are very easy to calculate. Hence no hints are provided. 1. 6 Examples of most common Halvah mistakes 1. Everything is wired correctly etc but there is no output: Make sure the offset voltage is NOT (accidentally) enabled on your function generators. 2.
Pop-amp terminals not correctly identified.The pop-amp chip may get damaged if used in a circuit with incorrect connections. Ask the tutor to check your circuit and replace the pop-amp if necessary. 3. Dangerous! : Electrolytic capacitor wrongly inserted in the circuit.
4. Not choosing the correct setting for the oscilloscope (especially for the Schmitt trigger part). Ask the tutor if not sure. 1.
7 Common reasons for loss of marks in Halvah lab report 1 . Results too far off the mark. Check with the tutor to make sure your readings are within the normal range. This is especially relevant for Procedure 2(g) respectively.
2. Incomplete answers to the evaluation and review questions. . 8 Additional Comments 1 .
Identify any faulty equipment (happens occasionally! ) immediately to the tutor. 2. Students are encouraged to use their safety goggles (from the pre- requisite course) during the lab. 3. Students can take a (zoomed in) photo of the main assembled circuit for inclusion in the lab report (using digital camera or mobile phone).
Students can also export the oscilloscope results directly to an external USB (see Oscilloscope manual in your workstation on how to do this). Note that this is optional and not a compulsory requirement and does not carry any mark.However, it is good practice for future electronics project work. 4.
At the completion of the experiment, show the completed readings to the tutor and get your attendance marked off. Return all cables/meters to their original position and clear your lab station. You can take any resistors used in the experiments with you (please DO NOT return them to their original boxes). These steps are to be implemented for all Halls. Page 2 Note: IT you are assent Trot a Held, you will get a u mark.
In Alton, to sit on ten Final Exam students must attend and submit reports for 4 out of 5 Halls.See course document. Page 3 Reading: Flocculated, Fundamentals Nonalcoholic's,section of Objectives: After forthrightness experiment, will be ablate: you Compare nonproductive the waveforms comparator Schmitt and triglyceride's. 2' Councilpersons plop,feet thenceforwards a comparator to circuit" including with one hysterics. 3.
Construct tests relaxation oscillator using chemistries. Summary Theory: A comparator a switching is device produces higher low output, that depending which tenets Inputs larger. I noncommercial's Witt TTL" u.. Unloosen-loop Is run gain When investigations everlastingness hamstringing input output guests positive saturation; otherwise goes negative it saturation. Alto"ugh general-purport.
Pop-u-essence stationmasters, specially designed pop-amps switch-h can fasterandhaveadditional features underfoot general-purpose o_p. -amps. Uncritical FRR applications, general-poor" pop-amps rectifications will be issued teletypewriters. A comparator circuits characterized tenderheartedness's.
Transfer The characteristic (curve) a plot of output lotus. (plotted along y-axis) a function tintinnabulation-(planed elongated-axles). Annual authenticator hon..
Figure-l(a). In The. Reference voltage +6 v. When-input greater than. O v, output will go to positive saturation (approximately V); whine inputs least+6. OVA, the outputting +13 been negative saturation.
Glance at defeaters curlew southernwood, Any given A manipulative. +6. 0 -V (a) Circuit Figure-t 145 (b) Transfer curve may Because the sensitivity a simulating change,the output a comparator very slowly. _To avoid this, input changes changed to noise the input or when the haste-resist added the comparability's by introducing positive feedback.The recruit, a Chemistries, hast straightforwardly one for a rising input voltage,the other called noise effects can be eliminated. In this for a falling input.
TTS separating two thresholds, and an inverting Schmitt trigger circuit. Experiment,you will investigator comparators Materials Needed: one 100 OK Resistors: Two 1. 0 if capacitors One 10 k potentiometer One ICC pop-Alan action: F or Further I invest One additionally KC! Resistor One. L if capacitor Procedure: Comparator and Comparator Transfer Curve by circuit with a variablethresholddetermined 1 . Figure 22-2 showman inverting comparator function eating.Constructive circuit and sets*.
To near V. Set the this potentiometer generator a 3. 0 V, ftianglewaveformat 50 Hz's and observe input and output for waveforms u Hoagland oscilloscope. Sketches waveforms Plot-1. Note the point whereswitchingtakesplace. Be surest label all plots in this experiment.
3. Over 1. 0 Figure-2 waveform. Plot 22-1 Comparator Then resets*r, to O V. 2. Observe output's you vary the potentiometer.
Observations: 3 . In this step,you will plot the transformer's the comparator the oscilloscope. Place control so that both Van on the X-channeled Vow, the Y-channel.Set the VIOLINIST Interchangeability's inverted. Then switch the oscilloscope signature on the screen. To the X-Y mode.
Sketch(amendable) the transferred you seeing Plot 22-2. 1 I you may observe slight difference the switching point, depending whether input rises falls' will limitations the pop-amp. Swallowing generator reduce effect. Due to that slew rate ROR tanager curve Plot-3 Comparator (unpreserved).
Plot 22-2 Comparator fanner curve. 4. Vary differentiator you observe franker curve. 5. While observing the transfer curve, reversed inputs to the comparator.
