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.
Hey E and John1 I know its been awhile since
I posted here about the circuit. Truth be told
I never got it functional. But I now know
why. I talked with a Professor in the Electrical
Engineering Dept. at my University. He took a
look at the design you posted which he indicated...
Thank you for the 2N2222 info
You were correct in identifying
my mistake there :roll: . The
electronics shop person drew me
a diagram of how that 2N2222
worked and what was what, but
he got it backwards :?
Anyway,
I was switched the 2N2222
connections and now when I
turn on...
Oh,
Hehe, I see why it was tough to figure out the relay...
I forgot to draw a set of pins for the silly thing....
There we go, things should be much clearer now since I've updated with the correct drawing of the Relay.
John1 --I'm still holding out for the relay circuit to work, With regard to the SCR's and only taking .8 volts, I'm not so certain that wouldn't be a problem. This video card is pretty power hungry and 0.8 V is more than a 10% undercurrent from the 5V line. Under full load, I could probably...
Hey guys, I decided to go with the Relay circuit you designed originally with the +5 and +12V connectors (this decision was made because the person at the electronics component store mentioned to me that the SCR's would work fine, but would also lower the voltage output by around 0.5~1.5V which...
Ok I have put together a list of various places I've posted about this problem and other people have posted about this problem. My name on all these forums is CVNet1. The 2 forums that had the most response about this problem are the AMDforums.com and the rage3d forums. I'll post all the...
I recieved a better explanation of what is going on that causes the PSU to shut off power to the system and why the 1 second delay works. Another person who I believe put together some type of delay/relay circuit as you have shown me said something about the video card sends the +5V line from...
That looks really nice, and I appreciate very much you coming up with that design for me. I do have one question though. From what I understand, the video card takes the 12V line and dumps it (probably to ground) and actually powers itself off the +5V line. That said, I still was wanting to...
Hi, Let me start off that I know very little about how to design circuits, but am confident I will be able to put together a design if one is handed to me. The reason I'm posting here is I have a computer system I built for myself but I have found that the video card I am going to use (ATI AIW...
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