AUX 3 Output - M800
Posted: Wed Apr 20, 2016 3:38 am
Hi all,
I was thinking of using the AUX output (I selected AUX3) to PWM-drive the cooling fan.
Selected a low RDsON Mosfet for the task (STH320N4F6-6), but it didn't worked as expected.
When I added a pullup (680 ohm) to AUX3 to PWR Supply, the signal looked much better, as long as it not was connected to the Mosfet.
Has anyone a schematic of how the HW for AUX3 looks like (inside the golden box)?
How should these outputs be connected?
Some scilloscope screenshots:
I was thinking of using the AUX output (I selected AUX3) to PWM-drive the cooling fan.
Selected a low RDsON Mosfet for the task (STH320N4F6-6), but it didn't worked as expected.
When I added a pullup (680 ohm) to AUX3 to PWR Supply, the signal looked much better, as long as it not was connected to the Mosfet.
Has anyone a schematic of how the HW for AUX3 looks like (inside the golden box)?
How should these outputs be connected?
Some scilloscope screenshots: