A Thread Starter amangupta009 Joined Apr 13, 2011 3 Oct 3, 2011 #1 In the given figure , when base voltage of Q2 is made 3.2 V then why Q1 reaches cut off and Q1 in active region and when base voltage of Q2 is made 3.5 V the why Q2 reaches active region and Q1 in cut off ?? Attachments untitled.JPG 107.7 KB Views: 20
In the given figure , when base voltage of Q2 is made 3.2 V then why Q1 reaches cut off and Q1 in active region and when base voltage of Q2 is made 3.5 V the why Q2 reaches active region and Q1 in cut off ??
Jony130 Joined Feb 17, 2009 5,316 Oct 3, 2011 #2 try read this http://en.wikipedia.org/wiki/Schmitt_trigger#Transistor_Schmitt_triggers