by Tweakie » Thu May 13, 2010 12:29 pm
Hi Bart,
Thanks for the fast response. Sorry but I don’t think I phrased my question very well.
I am using an analogue signal (0 to 5V) for the tube current control so no PWM required here.
It is the TTL input which is usually either 0V or 5V (<0.3V to >3V) that I wish to alter the duty cycle of. As the standard PSU switching response time is ≤ 1mS I am assuming that anything over 1kHz will be worthless and was just wondering if there was an optimum PRF already established.
What is the fastest speed the TTL input is switched on/off when raster engraving I wonder ?.
Thanks,
Tweakie.