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inductor saturation current

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Simon:

--- Quote from: T3sl4co1l on June 01, 2019, 10:39:07 pm ---Oh, that still, just use a few uH.  Not even that.  Put a few dozens nF either side of it and you're fine.

How much PWM was that going to be?  Just on and off?  Or at a modest frequency to get some buck action?

Tim

--- End quote ---

Yea that is what I am starting to think. Been doing some simulation and I can make a nice oscilator if i am not careful ;). I'm using 1µH at the moment.

xavier60:
if the current isn't continuous, load regulation can be poor.

Simon:
It's a PWM drive of a brushed fan. i am using a BTS50010. I can move the parts around. i was thinking of putting onu capacitor in the switch input and then a low pass LC filter on it's output so that the switch is in the middle of the filter but this seems to produce oscilations.

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