Hi All, I have a little project and I have been stumped trying to find a 2v relay. The source trigger voltage is 2v DC and this will switch 12V DC on the other side. Is there another way?
Easy, DC-DC boost converter, what is your average relay on time? Alternatively you could just use a logic level mosfet.... google mosfet as a switch
Different way, use a transistor instead of a relay. 2V is a bit low for even logic level MOSFETS but will easily drive a BJT. A power transistor could switch the load directly, or a small signal transistor could drive another P channel MOSFET. Edit: do the circuits have to be isolated?
You'd also better confirm the ammount of current you can sanely pull out of or sink into that 2 volt signal source, if you're going to look at buck converters and directly driving high-power transistors. Another option could be grab some 3 volt operating relays and see if they'll reliably run on 2 volts. The operating word in that concept though is "reliably"...
