Please look at these two relay scheme let me know if they are right
I think that I have both of these diagrams right but what I am wondering is if I should put any diode's in here for security. Here is an explanation of all the wires:
5v wire is from the ps/2 port to trigger the reed relay
12v comes straight from distro block connected direct to battery
neg goes to the ground
The once scheme is going to turn on the power inverter when the laptop is on (the one with the two green leads coming for the 12v relay)
The other is going to send 12v to my lilliput screen
So basically what I am wondering if if I should put any diodes in here somewhere so that my laptop doesn't get zapped for some reason. Also I was wondering if I would need to put a diode betwwen the negative of the 12v relay and the negative of the reed relay. The reason that I am wondering this is because after the reeed relay is triggered on it will be sending 5v to the neg side of the 12v relay and since the neg of the reed relay and the neg of 12v relay are connected together wont this try to trigger on the 12v relay? That is kind of hard to explain. Please let me know if there is anything that I should add, diodes, resistors, etc. Thanks!