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Variable voltage and led

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Variable voltage and led

Postby Shaam » Sun Mar 06, 2016 5:22 am


I want to mount a circuit which switch on different LEDs at different voltages.
For example, lets say I have 3 LEDS and i want them to light up at the voltages below:
5V, 1st LED
8V, 1st and 2nd LEDs
12V,1st, 2nd and 3rd LEDS.

For varying the voltages, i will be using a 10K potentiometer.

I need a simple circuit with basic components. I will be trying this circuit on a breadboard.
Thanks in advance.
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Re: Variable voltage and led

Postby pebe » Mon Mar 07, 2016 5:08 pm

It can be done with comparitors. However, to design a circuit you must state exactly what you want - not just 'for example'.
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Re: Variable voltage and led

Postby PradeepKumar » Wed May 11, 2016 5:36 am

Comparators is the right option to go with. Just try using that one to see good results.
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