Nov 22, 2012 #1 N nandrei Newbie level 4 Joined Jan 17, 2010 Messages 7 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Location Romania Activity points 1,357 Hi, I am starting to learn electronics and I want to make a low battery condition on a smoke detector. I wanted to do this with 12Vdc from a PC power supply and a potentiometer in series, but the detector shuts down when I adjust the potentiometer. Do you have any ideas how to do this?
Hi, I am starting to learn electronics and I want to make a low battery condition on a smoke detector. I wanted to do this with 12Vdc from a PC power supply and a potentiometer in series, but the detector shuts down when I adjust the potentiometer. Do you have any ideas how to do this?
Nov 22, 2012 #2 Tahmid Advanced Member level 6 Joined Jun 17, 2008 Messages 4,756 Helped 1,798 Reputation 3,588 Reaction score 1,656 Trophy points 1,413 Location Berkeley, California Activity points 30,586 Which smoke detector are you using? Why do you have a potentiometer in series? What exactly do you mean by "I want to make a low battery condition on a smoke detector."?
Which smoke detector are you using? Why do you have a potentiometer in series? What exactly do you mean by "I want to make a low battery condition on a smoke detector."?
Nov 22, 2012 #3 tpetar Advanced Member level 7 Joined Sep 27, 2010 Messages 6,417 Helped 1,713 Reputation 3,456 Reaction score 1,673 Trophy points 1,393 Location Pancevo-Belgrade, Serbia Activity points 37,363 See this example: