Hello everyone, how do we normally reduce the current spike of the flyback converter during start-up as shown in the figure below?
That does not look too bad ?
The effect is amplified because you have a 21V load offset, so your slight voltage overshoot give more current overshoot.
You look to be LED driving with current sense, if you think that current effect is really important, you can feed forward a little of the voltage rise, during ramp up.
(series RC from voltage to current opamp will manage that)