I finally figured out why it wasn't working properly, I had the two relays with 12V coils wired in series instead of parallel. That's why they'd work as first until they got a little warm from running and then would stop.
IR and MacGyver,
"Can't see any reason to have two relays; you only...
Hi,
Thank you for the quick reply. I wired the CL520 like the datasheet suggested, please see attached where the LED was to be ground referenced. I also uploaded a photo of the diagram in hopes that it might be clearer. In the hand schematic, "hobb" is the signal from the pressure switch...
Hello all, This is my first post here after lurking a bit. I have been tasked with designing a circuit to drop the DC voltage of a vehicle to the fuel pump to ~9V so that the pump power drops therefore putting less heat into the fuel during idle. I've been at it for a while and feel like I'm...