Driving a 7805 or how else to get +5VDC reg (was Re: My first good find!!!)

From: Loboyko Steve <sloboyko_at_yahoo.com>
Date: Fri Dec 6 16:20:00 2002

There are low-dropout regulators that can do this, but
they are more expensive.

Another thing I've done in thes3

--- Ethan Dicks <erd_6502_at_yahoo.com> wrote:
>
> > [ACE PSU]
> > ...a 7805 1A linear regulator which needs around
> > 8V to 15V to run properly.
>
> So I was thinking about this recently... I have this
> 6V battery
> pack that is intended to clamp to the back of a ZIP
> drive, allowing
> it to be used away from power, say with a laptop.
> I've wanted
> to use it for a portable source of juice for hobby
> projects (it
> has, among other features, a built-in 110V mains
> plug and recharger,
> making it handy to recharge), but I haven't expected
> to be able to
> feed a 7805 at +6VDC and get +5VDC out the other
> side reliably.
>
> How can I take +6VDC of battery power and get +5VDC
> regulated power
> from it? If it matters, the currents involved will
> be under 1000mA,
> but probably over 200mA.
>
> -ethan
>
> P.S. - I don't mind the concept of a DC-DC
> converter, but I'm not
> skilled enough to design one, just skilled enough to
> build it.
>
>
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Received on Fri Dec 06 2002 - 16:20:00 GMT

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