Electronic Circuits- NOTE: Need to have resources to construct the attached circuits

NOTE: Task sheet attached

Scenario ~

You have not been working long in a small Electronic Engineering business when your

boss (an engineer in his own right) hands you two sheets of paper each with a circuit

roughly sketched on it, tasking you with building, testing and checking their

functionality. The first circuit has a power supply regulator function for you to confirm

with measurements, and the second is a sequencer for output to some automation


Build both circuits and do the tests required, as follows:

Task 1 ~

For circuit (1) –

You have been told that this circuit is to be for a power supply that has a variable output

range that should include 5V – 12V at an output maximum load current of 200mA.

 Do some circuit analysis calculations to check the design first and make any

adjustments to values you deem necessary.

 Next, build and test the circuit, taking measurments to confirm its performance.

 Record d.c. voltage measurements at points A and output Vo for the extreme

settings of the potentiometer, and then using the a.c. range on your multimeter

take measurements again at A and Vo (also for both extreme settings). Do these

tests with an output load current of about 50mA and again at about 200mA.

Tabulate your results.

 Summarise the performance, observations and recommendations into a short

report. The recommendations should include suggestions for improvements.

(50 marks)

Task 2 ~

For circuit (2) –

You have been informed that the sequencer circuit requires verification. To do this you

will :

 Study the datasheet for the 4017 IC (and the datasheet for the LM555)

 Do some preliminary calculations to verify the LED drive circuit and the timer

(555) circuit. Determine that there is sufficient current to light the LED when on

and calculate the timing information for the timer (555) circuit.

 Briefly explain the operation of the circuit

 Build the circuit and once checked, connect to a 9V power source (either the PSU

circuit from Task 1 or a 9V battery)

 By monitoring the d.c. voltage at point A on circuit 2 and noting the changes in

voltage, count the changes over a 20sec interval to determine the timing from the

timer. Record your observations and results.

 Investigate that the two switches behave correctly (simulate switches by using

wire links).

 Record the timing sequence and periods for the LED at the output (B).

 Describe step by step the operation of the circuit and comment on the

performance, and any observations and recommendations into a short report.

(50 marks)

Submission :

For both tasks the reports should be not more than an A4 page each for the calculations,

tabulated results, observations, circuit operation and performance explanations, and


In addition to the written part also include for Task 1 a pic showing your built circuit

under test depicting clearly a relevant measurement that appears in your results and forTask 2 a short 20 s clip showing your circuit operating under the test conditions

(including switch options) and including your voice-over explaining things. A Marking

criteria sheet will be put up on the StudyDesk shortly.

Submission via StudyDesk will be by a single pdf file. [ A freeware pdf creator like Foxit

can embed video].

Taidot: sähkötekniikka, Sähköasennus

Näytä lisää: range resources, power electronic engineer, power electronic design, note creator, need second engineer, need building engineer, led light design circuit, has attached, electronic engineer power, electronic engineer information, electronic design engineer, electronic electrical engineering, electrical electronic, design verification testing, d 555, circuits design, business wire, business electronic engineer, need electronic invitation system, programming electronic circuits, electronic circuits layout, simple electronic circuits, programing electronic circuits, layout electronic circuits

About the Employer:
( 6 reviews ) Rockhampton, Australia

Projektin tunnus: #8643358

Myönnetty käyttäjälle:


we have all required setup for assembling and fabrication of circuit board . this is very easy task for me .plz contact me as soon as possible .

111 $ AUD 3 päivässä
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10 freelanceria on tarjonnut keskimäärin 182 $ tähän työhön


I am an Electrical Engineer having specialization in Electronics and Control, teaching in Electrical Department at FAST National University Pakistan. I am also continuing my MS degree in Electrical Engineering with spe Lisää

350 $ AUD 3 päivässä
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Hi, I am a post graduate power electronics engineer and having excellent design and development knowledge in power supplies,SMPS,DC-DC,AC-DC,Battery chargers design using different topologies like flyback,push pull,b Lisää

244 $ AUD 5 päivässä
(26 arvostelua)

hi please have a look at my profile i can do it for you please consider me for your job I am waiting for your reply to start regards

263 $ AUD 3 päivässä
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A proposal has not yet been provided

255 $ AUD 3 päivässä
(13 arvostelua)

Hello. I need some additional information about first and second schematics. If you are interested please write to me. I have experience in PCB design (calculations, choice elements, layout etc.). Your project looks Lisää

100 $ AUD 5 päivässä
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Hi. I am a professional Electronics Engineer having expertise in making schematics and PCB's of Electronic Circuits. Contact me ASAP. I am waiting to deliver you a complete perfect project.

333 $ AUD 3 päivässä
(5 arvostelua)

hello there !! i am a final year engineering student with expertise in circuit analysis and electronics i would like to do this project for you .let me know if you interested we can negotiate about the time if u need i Lisää

55 $ AUD 3 päivässä
(3 arvostelua)

I am an expert in this field from long time. I can do it perfectly. I’ll be waiting for your positive reply thanks.

250 $ AUD 3 päivässä
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A proposal has not yet been provided

35 $ AUD 38 päivässä
(0 arvostelua)

I have worked on several types of power supplies and I'm good in testing and customizing these type of circuits.

77 $ AUD 3 päivässä
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