Digital Logic Design (CS302)
Assignment # 04
Total marks = 20
3rd of February, 2016
Please carefully read the following instructions before attempting assignment.
RULES FOR MARKING
It should be clear that your assignment would not get any credit if:
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In this assignment, students are provided with the design Car Indicator Light Circuit using basic 555 timer IC. We have designed this circuitry using “Electronic Work Bench” (which can be download from VU-LMS download section).
Car Indicator light working mechanism:
When the indicator is triggered, the indicator light will blink for a pre-defined N seconds.
We have used 555 timers in two different states.
• Mono-Stable State
• A-Stable State
Using Mono-Stable 555 timer, after triggering the switch (using Space bar in Electronic Work Bench) will generate 20 seconds UP clock signal.
A-Stable 555 timer is set to generate a clock with duty cycle of 50% of 2 secs (1 sec Clock UP time and 1 sec Clock DOWN time) and will be controlled through Mono-Stable 555 timer output.
By cascading these two 555 timers (Mono-Stable and A-Stable) the output LEDwill blink for 20 seconds (1 sec ON and 1 Sec OFF).
You are required to go through the 555 Data Sheet and Assignment # 04 Electronics Work Bench File (using Electronic Work Bench) and calculate the values for resistors R1, R2 & R3 to generate the specified timing cycles.
555 Mono-Stable Timer
555 A-Stable Timer
Note: R1, R2 and R3 are required where we are using capacitors C1 and C2 of 50µF in diagram given above.
Required supporting material:
Electronics Work Bench
555 Data Sheet
Assignment # 04 Electronics Work Bench File
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Last link not working
They update link gain. Please Download assignment file again. this file include it assignment file
Please help me the solved the assignment as me electronic link kasay down load ho ga
Please share the complete assignment solution
koi concept to dain iss assignment k according.
let start discussion...
Y assignment kasay solved ho gi meri tu assignment bi open nai ho rhi hai please help me solution hi send ker do
first of all open zip file.
then install electronics workbench
then read out the pdf files carefully
and then open the given circuit in electronic work bench.
and find the values of resisters.
here i reconstruct the circuit that is given in the asignment.
Here is circuit file
but how to calculate
this diagram is already have with assignment