K
krw
- Jan 1, 1970
- 0
The persistence of vision, the flicker frequencies for most folks is
about 8hz, so when the proportion f 1/2 cycle arpoaches that some folks
will begin to see it, and other will not, as you eat more cycles of
course the drive is more choppy and you cant average out the photons as
the other poster noted![]()
No, the "flicker fusion frequency" is more like 50-70Hz and the
motion fusion more like 25-30Hz. There is a reason movies selected
24fps (and use double or triple shuttered for 48 or 72Hz flicker) and
TV is 30fps (interlaced to 60fps) (NTSC).
But, you can conceptually make this dimmer and thats what the poster
wanted. The traditional and widely adopted intra-cycle modulation is
used everywhere.... Perhaps there is a space where you want one, maybe
one that can do both.. not sure?
Everywhere?
OTOH, one poster suggested that , using 1/2 cycle non symmetry would
result in a net DC component and that it was bad. Not sure what would
dbe bad on a light bulb load, with a slight, very tiny mathemical sized
DC component.. PLease advise what sort of effects you were envisioning??
It's not going to bother a resistive load, though for light bulbs the
classical Triac dimmer circuit works better.