Hello, Need help with a 555 timer circut ... I need a 555 timer to be trigered on by a momentary switch that starts the timer that is wired to a no relay the relay need to stay open till a time of 4sec passes then it needs to just close and reopen it is not to stay closed just triger the relay on and then the relay should open back up can this be done witt a 555 timer regards john
im still lost here the 555 needs to be triggered by a momtary switch then start the timer then after 4 sec. pull the relay in and then let go only just closing the relay for a second or so
im still lost here the 555 needs to be triggered by a momtary switch then start the timer then after 4 sec. pull the relay in and then let go only just closing the relay for a second or so
Nice post Eric
you should have included a relay driver circuit (resistor, transistor and relay specs needed.)
Oh yea a diode across the relay coil.
I need to get back to using LT SPICE
what is the include?
Have seen before but not sure??
Nice post Eric
you should have included a relay driver circuit (resistor, transistor and relay specs needed.)
Oh yea a diode across the relay coil.
I need to get back to using LT SPICE
what is the include?
Have seen before but not sure??
The include is dview.lib it comes in two flavours, a 5 and a 10 channel.
It enables the plotting of upto 10 traces , spaced one below the other, making digital plots easier to follow. Of course the Vertical scale is meaningless.
The dview can be downloaded from the Yahoo LTspice user group site.
EDIT:
added the dual mono.asc , get the dview first.