Hey guys,
Im new to this site and am definetly not an electronics genious by any means. We are a perfomance shop that builds mostly all diesel race trucks.
Now for the problem, we have swapped injecion pumps on a truck to a different model. They are both pwm controlled on the ground side. the factory pressure regulator(solenoid) is normally open. On the new one its normally closed. So basically I need to invert the signal and am having a hell of a time figuring this out. Its a 12v system, both regulators are operating at 330hz.
I tried irf510 without any luck there. I right now have 2 tip3055's in parallel. I have a diode accross the solenoid. The signal appears to be inverted however its not a good signal. Seems when it shuts off the signal falls to 0v then imediatly ramps up to about 9v then up to 12v for the on time. I dont know how to clean the signal up so the off time is actually off.
I could be going about this totally wrong.... thats what im not sure, i just dont have any help at all from anybody on this one. Any help would be much appreciated. Thank you very much.
Im new to this site and am definetly not an electronics genious by any means. We are a perfomance shop that builds mostly all diesel race trucks.
Now for the problem, we have swapped injecion pumps on a truck to a different model. They are both pwm controlled on the ground side. the factory pressure regulator(solenoid) is normally open. On the new one its normally closed. So basically I need to invert the signal and am having a hell of a time figuring this out. Its a 12v system, both regulators are operating at 330hz.
I tried irf510 without any luck there. I right now have 2 tip3055's in parallel. I have a diode accross the solenoid. The signal appears to be inverted however its not a good signal. Seems when it shuts off the signal falls to 0v then imediatly ramps up to about 9v then up to 12v for the on time. I dont know how to clean the signal up so the off time is actually off.
I could be going about this totally wrong.... thats what im not sure, i just dont have any help at all from anybody on this one. Any help would be much appreciated. Thank you very much.