Try the same pics again, but hold the camera more steady - and a bit further away. If you have a tripod, use it.Is there a certain part you want to see or should I just try the same pics again?
Ok. In that case, do a screen print (Ctrl+PrintScr), paste it into MS Paint, crop, save it as a .PNG file and upload it.I'm using eagle 5.6.0
Cool I'll take that soon thanks.Yikes! You sure picked the hard road... there are good reasons to use the schematic capture portion first; one of them is just so that if you make any changes to the basic schematic, they'll show up in the board.
Another is the Electrical Rule Check function.
Here's a basic tutorial on Eagle: http://www.sparkfun.com/commerce/tutorial_info.php?tutorials_id=108
Here's a decent basic tutorial:Do you know of a good online course for learning more about how to use an O-scope?
Well, part of the mystery solved. Oh, I'm back home BTW. Was a heck of a drive.Ok I found the real problem. M1 was blown and shorted causing the high amperage draw.
How about the other grounds in the circuit? Do they also go to the battery, but on wires separate from R4?I replaced it and went in for another test and got nothing. I hooked it up exactly like the diagram and R4 is going to the battery.
12.2v relative to what? Ground? Or the source terminal of the MOSFET?I get 12.2v at the gates but the O-scope shows a very tiny ripple.
What is the P-P voltage of the pulse from the 555 timer?I have a pulse coming from the 555 timer but it seems I have no real path for flow through the cell.
Welcome homeWell, part of the mystery solved. Oh, I'm back home BTW. Was a heck of a drive.
All of the other grounds are tied together and go to the battery, so i have two grounds going the the pwm.How about the other grounds in the circuit? Do they also go to the battery, but on wires separate from R4?
Ground. got nothing from source to gate.12.2v relative to what? Ground? Or the source terminal of the MOSFET?
Rookie mistakeYou have to realize that when measuring the voltage on the MOSFET's gate, the only reference you can use is the source terminal. If the gate is near 0v, the MOSFET will be turned off. If the gate is near 10v, the MOSFET will be turned ON.
P-P? positive to positive? 8.12v using Fluke processmeter 789What is the P-P voltage of the pulse from the 555 timer?
Are you using an OPA2344U for the op amp?Here is what I have so far hope it helps
I'm using the LM2904DMR2G op-amp that you suggested.SgtWookie;152166]Are you using an OPA2344U for the op amp?
I used a couple of n-channel mosfets I had an abundance of: IXTH240n055tAre you using IRF512s for the MOSFETs?
The regulator's are the six square holes at the top I could'nt find the right one's so i measured and placed the holes where I needed them. You can see them in the pics I took.Where is your regulator?
C6 and c2 are the same thing as the regulators couldn't find the right package to put it on the schematic. I can try to use paint and draw where all this stuff goes but I assure you it's there.I dunno, you started out saying that you built it exactly like I had it in my schematic. Now it seems that you changed quite a few things, and I'm still trying to make heads or tails out of what you did on the PCB. I don't see C6 anywhere, which is a pretty important part.