On 10/12/2005 the venerable Dope mcSmoke etched in runes:
Quote:
John B wrote:
On 09/12/2005 the venerable Dope mcSmoke etched in runes:
It's been a few years since I had an electronics course, so I need
help with a relatively easy question.
I need to reduce 24 volts DC to 5 volts DC. I think it's just a
matter of a couple resistors but am unsure. The amperage is
relatively low (not sure exactly).
Can anyone help? Details would be much appreciated.
Thanks,
-Dan
7805L regulator. Costs about 50 cents and comes in TO92 package.
But it might get hot fed with 24V
|
Yes it might, that depends on the current consumption. But it won't get
any hotter than the dropper resistor in a potential divider and the
output will more stable.
If in doubt use a standard 7805 1A regulator bolted to Mr mcSmoke's
dope tin.
--
John B