soft start for powerhead

[titus]

Hello,

<ul type="square">[*]I wonder what happens when we feed it V(t) = 120 * sin(60 * t)[*]I can only think of changing current by changing the inline resistance, or supplied voltage.[*]Man this is like back to the area where we think about current sourcing amplifiers, tubes or transistors?[/list:u:31a2577a24]