Feb 11, 2008 #1 E ednan Advanced Member level 4 Joined Feb 13, 2007 Messages 118 Helped 1 Reputation 2 Reaction score 1 Trophy points 1,298 Activity points 2,059 M doing a project of Micro controller..."HOme Security system"..in which i want to use Thermistor....but i am confused in using NTC or PTC.... plz tell which one i used....
M doing a project of Micro controller..."HOme Security system"..in which i want to use Thermistor....but i am confused in using NTC or PTC.... plz tell which one i used....
Feb 11, 2008 #2 L laktronics Banned Joined Jan 6, 2007 Messages 942 Helped 176 Reputation 352 Reaction score 18 Trophy points 1,298 Activity points 0 Re: Need Help... Hi, I think it hardly matters, so long as you know what it is and its characteristics, and suitability of its range for your application. Regards, Laktronics
Re: Need Help... Hi, I think it hardly matters, so long as you know what it is and its characteristics, and suitability of its range for your application. Regards, Laktronics
Feb 11, 2008 #3 Khabree Advanced Member level 4 Joined Dec 3, 2007 Messages 104 Helped 17 Reputation 34 Reaction score 4 Trophy points 1,298 Activity points 1,776 Re: Need Help... I am agreed with Laktronics and add that NTC are comparatively cheaper.
Feb 12, 2008 #4 E ednan Advanced Member level 4 Joined Feb 13, 2007 Messages 118 Helped 1 Reputation 2 Reaction score 1 Trophy points 1,298 Activity points 2,059 Re: Need Help... Plzz tell me wat is the purpose of REED switch in the circuit...
Feb 13, 2008 #5 blueroomelectronics Advanced Member level 5 Joined Sep 17, 2006 Messages 1,681 Helped 180 Reputation 358 Reaction score 77 Trophy points 1,328 Location Toronto, Canada Activity points 8,696 Need Help... A Reed switch is a magnetic switch. They use them on doors and windows. https://en.wikipedia.org/wiki/Reed_switch
Need Help... A Reed switch is a magnetic switch. They use them on doors and windows. https://en.wikipedia.org/wiki/Reed_switch
Feb 13, 2008 #6 Khabree Advanced Member level 4 Joined Dec 3, 2007 Messages 104 Helped 17 Reputation 34 Reaction score 4 Trophy points 1,298 Activity points 1,776 Re: Need Help... A reed switch activates in a magnetic field. i.e. It can be activated when a permanent magnet comes near it or sometime specific number of turns of a wire (a coil) wound on it and it activated when a DC supply connected to that coil.
Re: Need Help... A reed switch activates in a magnetic field. i.e. It can be activated when a permanent magnet comes near it or sometime specific number of turns of a wire (a coil) wound on it and it activated when a DC supply connected to that coil.