Re: Wheelchair proximity detection

["AZ Woody" <Reply@xxxxxxxxxxxxxx>]

With a LM7805, it's one device (not always a chip), as the Lm7805 is
available in a to220 package.  Two wires to one of the 12v bats, and two
wires at 5v.  The Lm317 will require a few more parts.


"David Norwood" <judapeno@xxxxxxx> wrote in message
news:EjTzg.7273$jt.6679@xxxxxxxxxxx
> Is it really as simple as connecting the input and output voltage wires to
> this one chip, or do I have to design a circuit around it (which I don't
> know how to do)?
>
> David
>
> "Dave Houston" <nobody@xxxxxxxxxxxx> wrote in message
> news:44cff736.1260558828@xxxxxxxxxxxxxxxx
> > "David Norwood" <judapeno@xxxxxxx> wrote:
> >
> >>Is there a < $50 module that converts 24 vdc to 5 vdc?
> >
> > A linear regulator chip (e.g. LM317) can handle this for less than $1.
> >
> >     http://www.mouser.com/search/refine.aspx?Ntt=lm317
> >     http://www.st.com/stonline/books/pdf/docs/2168.pdf
> >
>
>