Society of Robots - Robot Forum

Electronics => Electronics => Topic started by: dellagd on April 05, 2009, 02:34:54 PM

Title: Variable DC power supply
Post by: dellagd on April 05, 2009, 02:34:54 PM

Hello-

I am wanting to make a variable dc power supply
I have sort-of an Idea on how to do it but I am still confused.

2. can I make this for under 20$?

thanks in advance

PS I sent admin an e-mail about making a tutorial and he hasn't responded for about a week
I don't want to sound impatient but I really don't know if he got it.

Title: Re: Variable DC power supply
Post by: SmAsH on April 05, 2009, 02:56:29 PM

well ask yourself this, what to resistors limit? if you dont know that you need to read up more. also, admin is a very busy man, did you pm him or email?

Title: Re: Variable DC power supply
Post by: galannthegreat on April 05, 2009, 02:58:41 PM

If you put "SoR" in the topic he should have gotten it.

And if you want to make a variable DC pwr supply you can use an LM1117T which is an adjustable VR.

Title: Re: Variable DC power supply
Post by: dellagd on April 05, 2009, 03:14:32 PM

email.
should I PM?

Title: Re: Variable DC power supply
Post by: SmAsH on April 05, 2009, 03:26:01 PM

did you put sor in the emails subject line? also pm would be good. but bear in mind he is a busy man so dont send him 500,000 emails. one pm should be fine as he comes on here fairly often. and was the tutorial about you wanting to put one up, or him make one?

Title: Re: Variable DC power supply
Post by: dellagd on April 05, 2009, 04:49:45 PM

I wanted to make one
and yes, I included SoR in the subject.
I will send him a PM
I am worried because I think the email might not have gon through for some reason.