bonanz Posted October 23, 2003 Report Share Posted October 23, 2003 is there a way to use a comparator as a digital logic inverter? Quote Link to comment Share on other sites More sharing options...
sigmacom Posted December 24, 2003 Report Share Posted December 24, 2003 A very simple approach, is shown in the following schematic. The 2 resistors of 1 kOhm each, make a voltage divider /2, providing a Vcc/2 voltage to the (+) pin of the comparator. This is used to set the (+) input at higher voltage vs the (-) input -and so- force the output (Y) to high state (Vcc). When voltage at pin (-) of comparator goes more than Vcc/2, then the output of the comparator (Y) goes at low state (GND) and vice versa. If you ommit the resistors, the input voltage at pin (-) must be > Vcc to trigger the output. Try it! :D Quote Link to comment Share on other sites More sharing options...
login
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.