Help With H-Bridge

Moisff

New Member
Hi guys, i'm making an H-Bridge motor driver for a water gun turret. The idea is that when i send a 5v signal to one side it turns the motor one way and when i send a signal to the other side it turns the other way. Quite simple really and i'm sure everyone's seen an H-bridge before.

Anyway this is my problem:

-Testing it out on Multisim there were no problems at all
-Building it on the PCB and testing it caused the TIP 125's to blow up

This wasn't expected. I've uploaded a PDF with my testing on Multisim and my circuit design for it, if anyone could point out any glaring mistakes for me i'd greatly appreciate it.

Cheers
 
Last edited:
Also it's saying i've uploaded the pdf but nothings showing up. I'm a newbie to this forum so any help would be appreciated
 
It goes through all the process and when it's finished the screen just goes blank. Who do i contact through the website about it?
 
!!! You can upload PDFs here?! WHy have I then been printing screen, pasting in PaintShop, and cropping the image like a fool when I can just print it as a PDF and upload it?
 

Some H Bridge theory found here:

http://www.mcmanis.com/chuck/robotics/tutorial/h-bridge/index.html

also PWM control.

Cheers!
 
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