Re: PIC controlled 12v waveform generator

ryan@xxxxxxxxxxx wrote:

> Hi,
>
> I am interested in capturing the slow "growing" effect that you
> see when the voltage is ramped up, where the light actually fills the
> tubes from one end to the other. This is an effect that can only be
> seen at approx. 1 Hz or slower, with a sine wave type input.

that should work ok, though not with a sine input of course, unless
your circuit has a bridge rectified input.

> I'm hoping
> to also get the higher frequency thing working also, so I'm looking for
> a frequency range of 0-1000 or 0-10000 Hz,

for what? The reservoir will turn 1kHz into dc, and if you removed
that to modulate the bulb at 1kHz I dont think you'd see anything but a
lit bulb.



> frequency modulation and control method. I'm still nervous the PIC
> won't source enough current for the 3055's,

It wont, use a darlington if you dont want to buy the fets.


NT

.