Nov 25, 2012 #1 Y yanda Junior Member level 1 Joined Nov 8, 2012 Messages 17 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 1,425 please what is pull-up and pull-down resistors and what exactly is there function in a circuit
Nov 25, 2012 #2 barry Advanced Member level 7 Joined Mar 31, 2005 Messages 6,521 Helped 1,206 Reputation 2,424 Reaction score 1,429 Trophy points 1,393 Location California, USA Activity points 35,481 Generally, they are used to pull an input to a known state when there is no driving signal. But they do have other uses.
Generally, they are used to pull an input to a known state when there is no driving signal. But they do have other uses.
Nov 26, 2012 #3 picgak Advanced Member level 1 Joined Oct 13, 2011 Messages 407 Helped 102 Reputation 204 Reaction score 102 Trophy points 1,323 Activity points 3,177 pull up means resistor from output point to +ve, pulldown means resistor from output point to -ve .The condition when no output is awailable at the output point , your pulledup+ or pulldown - will prevail
pull up means resistor from output point to +ve, pulldown means resistor from output point to -ve .The condition when no output is awailable at the output point , your pulledup+ or pulldown - will prevail