Hi,
I am trying to build a circuit that will turn on (and off) a 12v 2.0A (max output 24W) device using a 5v control line.
The 5v control is from a USB interface connected to my PC. I have been trying to search for and answer and *think* I may need a 12v Relay (5v control) and perhaps a diode to stop feedback through the 5v line???
However I am not fully sure hence asking for help here. I have a Maplins book but there are a lot of relays in there of different types and I am also unsure of what exactly which one I would need.
Any help would be greatly appreciated
Regards
nemo
PS this is the second post of this item, the first one didn't *seem* to get published.
I am trying to build a circuit that will turn on (and off) a 12v 2.0A (max output 24W) device using a 5v control line.
The 5v control is from a USB interface connected to my PC. I have been trying to search for and answer and *think* I may need a 12v Relay (5v control) and perhaps a diode to stop feedback through the 5v line???
However I am not fully sure hence asking for help here. I have a Maplins book but there are a lot of relays in there of different types and I am also unsure of what exactly which one I would need.
Any help would be greatly appreciated
Regards
nemo
PS this is the second post of this item, the first one didn't *seem* to get published.