Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
I got it working!! I went back to the drawing board, got all the bits together, followed it exactly...no smoke. I just must have had it wired wrong without realizing it? I dunno.
Guys you have been the most help!
Thanks so much.
Yep, I tested the LM2575....totally shorted between pin 1 and 2.
Filed under B for bin.
So now that I have successfully blown up every component bar the diode. I will start again LOL.
So just so I understand, the initial inductor was too high resistance and too low current capacity, it blew...
dam it, now I blew the inductor and both the 330uF and the 100uF caps.....
ok.....I decided to wire up just the LM2575 circuit on the breadboard, and see what was going on, and see if I could get 12V.
I understand the problem with the drawing I did.
The C2 cap should be on the other side of the...
Les - I am going to need to read that a few times LOL
jpanhalt - I actually pulled out the capacitor before I posted this, so i never checked. So today I put another one in the right way....lasted 4 seconds before lots of smoke......polarity was not the problem unfortunately.
I am still not...
Ron - I rechecked the spec sheet for the LM2575, and it is the same I have have done it. I just used a pot for "R2" on the spec sheet, so I could vary the voltage out and get bang on 12V for the coil.
I have attached a screenshot from the spec sheet.
And diode too slow....sorry, not sure what...
Hi Guys,
I am up to the next part in my induction annealer control circuit project.
I have run into trouble.
I wired up the circuit (Drawing attached. Sorry about the drawing. Free online circuit drawings don't allow some components, so I have drawn them as text boxes, hope that's ok).
When...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
