Advice required on 12V power supply...
Posted: Thu Jul 09, 20 7:42 pm
I know some of you guys know your onions when it comes to electronics. From time to time I need a source of 12V DC power to test or operate something on the car. Case in point is the convertible top motor which I’ve recently been finishing. In the past I’ve just used a car battery, but over the years they wear out and I’m not using it frequently. I had an old one which finally gave up the ghost.
I thought about using a mains powered 12V DC supply, and looked at converting an old PC Power supply (plenty of how-to’s on the net) which worked but did not supply the current I need. I reckon about 30-40 amps is necessary if it would work safely on my convertible top, or full beam headlamps etc (30 should be OK but may be better to have a safety factor?)
Anyway, I came across these on the web – they are popular for LED strip lights etc. Can get 30 amps for a decent price, 40 is a bit more. On the surface it looks like the ideal solution, but wanted to check with someone knowledgeable in case I’m missing something (surge protections, inrush currents etc).
Does this seem like a plan or have I missed something?
I thought about using a mains powered 12V DC supply, and looked at converting an old PC Power supply (plenty of how-to’s on the net) which worked but did not supply the current I need. I reckon about 30-40 amps is necessary if it would work safely on my convertible top, or full beam headlamps etc (30 should be OK but may be better to have a safety factor?)
Anyway, I came across these on the web – they are popular for LED strip lights etc. Can get 30 amps for a decent price, 40 is a bit more. On the surface it looks like the ideal solution, but wanted to check with someone knowledgeable in case I’m missing something (surge protections, inrush currents etc).
Does this seem like a plan or have I missed something?