Question

2.31% % difference When you have finished this analysis and are satisfied with your circuit's performance present it to the instructor for final testing. Obtain your instructor's initials in one of the two boxes The circuit's time delay was 10 +1 s The circuit's time delay was not within 1s of 10 s. Here is a schematic of the complete circuit. Add to the diagram values for the supply voltage, the resistances in your divider and the resistor and capacitor value in your RC circuit. Place the values next to the corresponding components. LED Siren 4401 LM311

Answer 1

LM311 is a famous comparator IC. The output of this IC is an open collector configuration. This means the collector of the output transistor in this IC is left OPEN. We should connect it to Vcc using a pull-up resistor. So when the transistor is off, the output will be Vcc.

LM3ll s a Com PaTator Ic If outPat Pin is corre ckd to ver through a → when Button is kept pvessed-vi-o (since caPacitor dis char ?ed >ohen button is veleaSed Catacitorchagesthh and unen ve inczases beyond Va, V 3 g0es high and So Buzzex'ings. Let Vcc=0V chose R c such that Rc lo Se c Not mndatory PC 14.42G9

NOW RC=14.4269 seconds. We can choose any values for R and C such that RC value is satisfied.

Let's choose C as 100uf as it is commonly available.(if you choose much smaller capacitor, the R-value required would be in tens of megaohms and it might be difficult to find such large resistance values. Now R turns out to be 14.429/100uf= 144.29 kilo-ohms.

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