Post your proteus project fileView attachment 365034
i am trying add the relay circuit to it. like the relay should cut off the load when battery voltage is not desired.but the motor always rotates.
I believe all simulators do.Some simulators require a ground connection before they'll work. Seems silly, but it is what it is...
there is some kind of eror when i do thatPost your proteus project file
still no change.
this didn't work too.I feel one end of the coil side to be grounded.
Zip it up, then post.there is some kind of eror when i do that
This may be one of the error not the only error.this didn't work too.
thank you
hi @ji___haeither fault condition triggers the relay driver transistor Q2 (BC547), which pulls in relay RL2 to disconnect the load.


i fixed it now it's working thank you.hi @ji___ha
This is your circuit in LTSpice.
I have used resistors to represent the LED and Battery?
Please check it for accuracy comparing with your circuit diagram.
There are a number of points on your design that require modification.
E
View attachment 365112
If you can’t use proteus, then just go back to old school pencil and paper. As others have said the schematic as you presented it is difficult to follow - even for the experts here.i took multiple days to do this fr. I am a beginner, this like my first time using proteus and also first time creating a fully analog circuit , so i am not very good at it. I can't figure out how to do it, i have been doing it for days now i still can't figure out.
of course the motor will always run.View attachment 365034
i am trying add the relay circuit to it. like the relay should cut off the load when battery voltage is not desired.but the motor always rotates.
Of course the motor will always run. For a reply to operate it needs a positive and ground connection.of course the motor will always run.