Question:

Writing a report about the battery indicator circuit. Need help! What to write? thanks!!!?

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##Description of the circuit.

The circuit was made up with 12 ICs (LM324 op amp) and 24 1kOhm resistors (voltage divider rule) and a 10kOhm (to cancel the noise), 1 3k Ohm resistor(if not the 12th Led will be lighting up at 11.1 V instead of the desired 11.9V), 12 LEDs (4 green, 4 yellow, and 4 red) for all the respective voltage level. (1-12V)

##Problems

The circuit works great and now i have a problem writing a report of it. What should i write?

1) I was asked to run tests on the circuit but i dont know what sort of test should i run on it.

2) and i was asked to take photos of the circuit while i'll be passing up the circuit along with the report to the lecturer. So what sort of pics should i take and print on the report?

please help as this is the first time i write reports for this!

THANKS!

 Tags:

   Report

1 ANSWERS


  1. You should do your own homework, how else do you expect to learn anything?

    If you built the circuit, you have to have a good idea of how it works, just describe it bit by bit.

    To run tests, just put an adjustable power supply in place of the battery, with an accurate voltmeter. Start with zero volts and slowly increase the voltage and note when each light turns off or on. Write up the results. Are the lights turning on/off at the proper voltage? why not?

    Another test: What voltage/battery powers the board? does changing it cause the circuit to behave differently (repeat above test)?

    Pics, just take lots and sort it out later.

    .

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