Hello,
Just wanted to start by saying that I came here for help to finish my personal truck build. My knowledge in electronics is fairly basic (lots of stuff off of this site and youtube) but I understand basic circuitry.
I have an aftermarket PWM cooling fan installed on my truck. Originally I had it controlled using its own temp related controller. I am currently trying to get it controlled directly from the ecu but I am having issues running it properly. Turns out whenever I command 10% duty cycle at the ecu the fan goes to 90% and when i command 90% the fan goes to 10%. I did more research and it turns out i need to reverse the polarity to get it to function properly.
Is their a way to easily invert that signal given the signal voltage is 5V while the battery source is 12V?
Just wanted to start by saying that I came here for help to finish my personal truck build. My knowledge in electronics is fairly basic (lots of stuff off of this site and youtube) but I understand basic circuitry.
I have an aftermarket PWM cooling fan installed on my truck. Originally I had it controlled using its own temp related controller. I am currently trying to get it controlled directly from the ecu but I am having issues running it properly. Turns out whenever I command 10% duty cycle at the ecu the fan goes to 90% and when i command 90% the fan goes to 10%. I did more research and it turns out i need to reverse the polarity to get it to function properly.
Is their a way to easily invert that signal given the signal voltage is 5V while the battery source is 12V?