mahinda jayasinghe
New Member
I want to install central locking in my car.
I installed the latch(relay or solinoid) to the door.
To make it work I need to reverse the polarity.
that means, need to apply +12V to operate (one direction), Need to reverse the polarity to operatr into other direction.
My question is any simple way to togle the polarity every time I lock and unlock.
I have a alarm circuit but it has contact normaly closed and normaly open
when I press unlock button, contacts operates and come back to original position in seconds.
Any idea how to make a togle switch to operate my door lach.
Many thanks in advance
I installed the latch(relay or solinoid) to the door.
To make it work I need to reverse the polarity.
that means, need to apply +12V to operate (one direction), Need to reverse the polarity to operatr into other direction.
My question is any simple way to togle the polarity every time I lock and unlock.
I have a alarm circuit but it has contact normaly closed and normaly open
when I press unlock button, contacts operates and come back to original position in seconds.
Any idea how to make a togle switch to operate my door lach.
Many thanks in advance