Can u plz help how a NPN or PNP transistors is used in proximity switches?
Thread Starter sify87 Joined Jun 23, 2010 9 Jul 3, 2010 #1 Can u plz help how a NPN or PNP transistors is used in proximity switches?
hgmjr Joined Jan 28, 2005 9,027 Jul 3, 2010 #2 Are you wanting to implement a proximity switch or are you looking to implement a touch switch? A touch switch can be built with a single MOSFET. A proximity switch is bit more involved. hgmjr
Are you wanting to implement a proximity switch or are you looking to implement a touch switch? A touch switch can be built with a single MOSFET. A proximity switch is bit more involved. hgmjr
retched Joined Dec 5, 2009 5,207 Jul 3, 2010 #3 Are you thinking of HALL effect sensors? They often look like NPN and/or PNP transistors and can be used for proximity sensors/switches And some even more so. Attachments hallnpn.png 193.1 KB Views: 35 Last edited: Jul 3, 2010
Are you thinking of HALL effect sensors? They often look like NPN and/or PNP transistors and can be used for proximity sensors/switches And some even more so.
J Jaguarjoe Joined Apr 7, 2010 767 Jul 3, 2010 #4 Industrial prox switches are referred to as NPN or PNP depending on how the output is configured. An NPN prox is a low side switch, a PNP is a high side switch.
Industrial prox switches are referred to as NPN or PNP depending on how the output is configured. An NPN prox is a low side switch, a PNP is a high side switch.
