HMMM10/Stella Amp

Topics generally related to Twin Cities Maker activities
User avatar
pyrodogg
Site Admin
Posts: 385
Joined: Mon Jan 19, 2009 1:57 am
Location: Minneapolis, MN
Contact:

Re: HMMM10/Stella Amp

Postby pyrodogg » Sat Oct 01, 2011 6:11 pm

Yea, I think it just makes it more rugged so you don't have to worry about frying anything. But, 12V is pretty fine unless someone really wants to drive it off a large lead acid battery.

User avatar
sfaleron
Posts: 5
Joined: Thu Oct 06, 2011 6:35 pm
Location: U of M, Roseville
Contact:

Re: HMMM10/Stella Amp

Postby sfaleron » Fri Oct 07, 2011 8:33 am

A remark on voltage regulators. The standard linear regulators will get hot if there's a lot of voltage getting stripped off (essentially the difference in voltage is lost as heat, which will drain batteries much faster), which is why they come with big heat sinks. You still need to keep the heat sink cool, though. That's all in the datasheets. Switching regulators or dc-dc converters don't have this problem, but they can be tricky to integrate. I've used a switching regulator that has the pin out and rough form factor (it's a bit bulky) of a standard 78xx linear regulator. They aren't cheap, but aren't that expensive either, and make life a lot easier in some cases.

http://www.recom-international.com/prod ... -hole.html
http://search.digikey.com/us/en/product ... ND/2256215
Image
Perfection is achieved, not when there is nothing more to add, but when there is nothing left to take away.
-- Antoine de Saint Exupéry


Return to “General Discussion”

Who is online

Users browsing this forum: Bing [Bot] and 2 guests

cron