dc voltage

[kjw444]

I have made a prototype of my invention which works! What i need is a way to step a 12vdc battery down to 2vdc while providing 30amps. Is this possible?

 

[dereckbc]

Sure it is. The easiest to design is a linear solid state type voltage regulator using something like a LM314 and a darlington trasistor driver. The problem with them is they dissapate a lot of power and in your case about 300 watts because you are drooping 10 volts with 30 amps of current flowing.

The other type is a switch mode, but there are complicated and require quite a bit of circuitry and design expertise from folks who specialize in switch mode power design.

 

[Rick Christopherson]

You could begin your search by looking for DC-DC converters, but I don't know if you will find one that can supply 30 amps. But it is a start.

 

[Lxnxjxhx]

Try EEM

http://www.eem.com/

It'd be way better if you started with 2 vac and then rectified and filtered it.
Maybe you could get a convertor for 12vdc to some AC voltage, and then do the above. You only want 60 watts.

Once you have AC it's easy to do the rest, and you could parallel xformers to get the current.

Say, $50 for the DC to AC, then another $50 for parts to make the DC. Filtered & regulated DC might take a bunch of IC regulators paralleled, with current sharing.
National Semiconductor has app notes on how to parallel their IC regulators.

 

[dbuckley]

A switch mode power supply is the obvious approach. Just about every PC made in the last few years has 12V to about 2V supply to power the CPU.

Have a read of this article.