Xoutpost.com - How a PWM signal work.

Xoutpost.com (https://xoutpost.com/forums.php)

- X5 (E53) Forum (https://xoutpost.com/bmw-sav-forums/x5-e53-forum/)

- - How a PWM signal work. (https://xoutpost.com/bmw-sav-forums/x5-e53-forum/103444-how-pwm-signal-work.html)

upallnight

03-29-2016 12:33 PM

How a PWM signal work.

Not a BMW, but it shows how other manufacturer like Chrysler uses a PWM signal to control their radiator fan. I wonder if you could use that Chrysler relay with a Spal fan so you don't have to buy the over priced radiator fan.

https://www.youtube.com/watch?v=winfXPvjtgQ

jcp240z

03-29-2016 04:08 PM

He says that the Chrysler uses a PWM ground signal where the BMW uses a positive PWM. Would need to find out what the base frequency for the PWM is also, they'd have to match.

upallnight

03-29-2016 04:24 PM

Quote:

Originally Posted by jcp240z (Post 1073776)

He says that the Chrysler uses a PWM ground signal where the BMW uses a positive PWM. Would need to find out what the base frequency for the PWM is also, they'd have to match.

I believe the pwm signal used by BMW is also a negative signal.

All times are GMT -4. The time now is 10:23 AM.