Have not read all 340 posts to this thead yet, but most of them.
I built my own frankencharger. It uses a function generator, op amp, O scope, lab bench power supples and even auto jumper cables (I will never admit what they are used for).
I have discovered the car gets unhappy if it doesn't get 240 (or 120) pretty quickly after it has signaled it is ready for it. I figure it times out in about two seconds.
Right now, I simply engage a mechanical switch type connection right after the second beep. Takes two people, one to plug the J1772 connector into the car, the other to engage the juice. Next step is to automate that. I am thinking of using a triac/thyristor. Anyone know why that would not work? They do leak a tad. Much smaller, lighter and cheaper than a relay/contactor.
I took the stock leaf charger, opened it up, removed the PCB, jumpered the power lines straight through, added my circuit to the blue wire. I invested zero $$$ as I already had the op amp and resistors.
But seriously, if you wanted to do the wait for the beeps and throw the switch, you can be L2 pretty easy. I can make a circuit board to eliminate the function generator. Essentially what Chris at Open EVSE is doing. But I am planning on a module that simply replaces the module that comes with the charger. Then if you need to give it back, you just put the old module back in and hope they don't notice the holes in the plastic plugs that cover the screws. (You gotta drill them to get them out, but it doesn't ruin them).
Offlist I am [email protected]
So, relays or triacs (or SSR pucks)? Any opinions?
I built my own frankencharger. It uses a function generator, op amp, O scope, lab bench power supples and even auto jumper cables (I will never admit what they are used for).
I have discovered the car gets unhappy if it doesn't get 240 (or 120) pretty quickly after it has signaled it is ready for it. I figure it times out in about two seconds.
Right now, I simply engage a mechanical switch type connection right after the second beep. Takes two people, one to plug the J1772 connector into the car, the other to engage the juice. Next step is to automate that. I am thinking of using a triac/thyristor. Anyone know why that would not work? They do leak a tad. Much smaller, lighter and cheaper than a relay/contactor.
I took the stock leaf charger, opened it up, removed the PCB, jumpered the power lines straight through, added my circuit to the blue wire. I invested zero $$$ as I already had the op amp and resistors.
But seriously, if you wanted to do the wait for the beeps and throw the switch, you can be L2 pretty easy. I can make a circuit board to eliminate the function generator. Essentially what Chris at Open EVSE is doing. But I am planning on a module that simply replaces the module that comes with the charger. Then if you need to give it back, you just put the old module back in and hope they don't notice the holes in the plastic plugs that cover the screws. (You gotta drill them to get them out, but it doesn't ruin them).
Offlist I am [email protected]
So, relays or triacs (or SSR pucks)? Any opinions?