COUT peak

Niklas Almqvist 1 year ago in IQANdesign updated by Gustav Widén (System support) 1 year ago 3

For the machine we are building the initial pwm peak on the C-out channel interups the machine. Is it possible to adjust the intial peak?

You can try increasing the PWM frequency. 

Image 3553


Thanks for the answer, we have tested this and the peak gets lower with higher pwm BUT the ripple gets to low aswell. We are using a XC43. We would like a pwm around 125 pwm but not with that big "kick" in the beginning. 

Is it possible to adjust this or to build a C-out with a different kick?

One trick that I have used a few times is to have two modes on the COUT. One with a min current that is below the normal min current, and one with actual min current where the valve opens. 

That way you can ramp up the current below the normal min current.