soft start for powerhead

[DJ88]

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Hey why does it have to be V(t) = t^2 shape instead of V(t) = t? If it is V(t) = t^2, we can do use an op-amp integrator to drive a transistor.

I Kind of see where you are going Titus. Victor.. why? hmm? Using some form of integrator may work quite nicely. Nothing fancy. I hope I am reading this right.

hmm time to go do some more reading.

If this were possible for a reasonable price you could set up a wave making system where you can vary the output of the PH's could you not? nothing massive but a bit. Great option for a wave maker. Don't shut the PH's off but just slow em down so to speak. As long as you are over the EMF threshold they will spin.

Another application could be using MAG's for closed loop systems. Like what I want to do. Instead of getting the chatter on start up with using a plain old timer, hook them into a "wave maker" of sorts, with an integrator for start up, and then let the switching unit start and stop the pumps for random water flow on a larger scale in the tank.

Anyone agree? Or am I in left field??????