Tagged Questions
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Changing a Pot's Adjustment Range [duplicate]
I want to put 24 VDC through a 10 k pot but limit the output on the wiper to 2.5 V. Could you advise me what value and where to put the resistors please? There is no load on the circuit as it's just a ...
1
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1answer
295 views
how to reduce 24v to 0- 2.5v through a pot
I have a 24v dc supply and I need to give a heater a 0-2.5v variable input. I have a very limited understanding on electronics but I've read here about voltage dividers. I used a 10k pot (and the 2 ...
1
vote
1answer
238 views
How could I create a high-precision voltage with the atmega128?
In my solution i have to replace an 10 turn potentiometer ( 5 K Ohms ) with a digital circuit. the potentiometer is dividing a voltage between 4v to 21v. so it seems if i could generate a voltage ...
3
votes
7answers
815 views
how to drive a 1.35V led with a 1.4V AA battery
I would like to mount a TSAL6400 led on a single AA size battery box, with a simple ON/OFF switch. My problem is that the LED needs exactly 1.35V to function at its rated brightness. At this voltage ...
