G gvi70000 Member Nov 8, 2009 #1 Hello, I try to make a delay circuit that will lit the led from 10ms up to 1s using R1 (1MOhm) using TLC556 IC. the input is represented by V1 Do you think that this circuit will work? Thanks Attachments 556.JPG 83.9 KB · Views: 162
Hello, I try to make a delay circuit that will lit the led from 10ms up to 1s using R1 (1MOhm) using TLC556 IC. the input is represented by V1 Do you think that this circuit will work? Thanks
M mneary New Member Nov 8, 2009 #2 If R1 is all the way to the right, U1 will short the supply when it triggers. Should C4 go to ground instead of U2 THRES?
If R1 is all the way to the right, U1 will short the supply when it triggers. Should C4 go to ground instead of U2 THRES?
G gvi70000 Member Nov 8, 2009 #3 Thanks for replaying, Regarding the first observation, should i insert a 100Ohm resistor in series with R1 ? you right, C4 is from CONT (pin 11) to ground (- pin of C8)
Thanks for replaying, Regarding the first observation, should i insert a 100Ohm resistor in series with R1 ? you right, C4 is from CONT (pin 11) to ground (- pin of C8)
M mneary New Member Nov 8, 2009 #4 Since your desired minimum delay is 10ms, a 10k resistor would be about right.