I would like to express my thanks to all you for your help

Mar 01, 2004 4 Replies

I am sending you all this posting in thanks for the help in my not so good transister theory. I have built the supply and it is now under test.



You can see the final schmatic here;

formatting link



The Q2 in this curcuit is only disapating about .750 watts and is not even heating at this point. I have discharged my test battery's (2 X 12.6 5AHR in paralellel) to see max current flow with R2 at 39ohms/10W. The matel tab that is inside my case is not even showing signs of heat. It is only showing a slight higher temp the air temp. I could use 2N6284 Power darlington and eliminate Q2.


I would like to express my thanks to all you for your help on.,, I am stumped with this curcuit


-- My Cat Tigger says every morning... Before my morning coffee I might as well be a DOG! Insert ' NO SPAM ' when responding or it wiill be trashed

formatting link


Got a little more complicated, didn't it...

MikeM

Scott Wiper wrote:

It got very complicated... It's still charging the batteries and the ouput is 5.09v Q1 is warm now but extremely hot. Emitter voltage is 14.26V

-- My Cat Tigger says every morning... Before my morning coffee I might as well be a DOG! Insert ' NO SPAM ' when responding or it wiill be trashed

formatting link

in

showing

Ah, its running! Congrats. I hope it works out for your application...

Regards, Bob Monsen

It's working all to well the batteries are at 13.58V current is ..03A and steady.

Join the Discussion

Have something to add? Share your thoughts — no account required.

Didn't find your answer?

Ask the community — no account required