zachu812
Member
- Joined
- Apr 20, 2016
- Messages
- 420
Think I figured out the problem with the sensor circuit, I had the sensors running to the non-inverting input with the inverting input grounded. Didn't really click until I looked at a pinout and remembered hearing that the inverting input is generally more stable. I went to change the wiring permanently after testing the fix and realized I forgot to pull power after a small spark. Got another to replace it so we should be all set.
It's the LM1949. Had some trouble finding an NPN that will support the current the fuel solenoid needs while having a low enough base current that the LM1949 will run it ok. Got something that's on the edge of both specs, fingers crossed it works.
Thanks for looking out. With all the EPA stuff going on I don't feel comfortable trying to set this up as a money making venture, a few years ago maybe but I don't want the liability now. Think I'd rather just make it open source and allow others to fill in the gaps and make improvements.
Sounds like fun! What IC is it?
It's the LM1949. Had some trouble finding an NPN that will support the current the fuel solenoid needs while having a low enough base current that the LM1949 will run it ok. Got something that's on the edge of both specs, fingers crossed it works.
It is cool to see this go down but on a serious note if you plan to make this a money making venture once it is all complete I wouldn't show too much...
A lot of companies in this industry have zero morals and would gladly steal the fruits of your labor.
Keep kicking azz though it is impressive!
Thanks for looking out. With all the EPA stuff going on I don't feel comfortable trying to set this up as a money making venture, a few years ago maybe but I don't want the liability now. Think I'd rather just make it open source and allow others to fill in the gaps and make improvements.