Panrock wrote:...Your circuit remains sharp and loafs along...
I don't recall what the bandwidth of those drivers are, but probably OK up to a frame rate of 25Hz, perhaps more...I think it was a function of the cable length between the driver and the LEDs/lasers. This may be something to consider...I guess you'd prefer the controls for gain and black level remote from the display, correct?
These ones using the BD1xx's will be limited by the PWM arrangement, somewhere in the region of 200kHz...but note the cable length remark above. Which reminds me - I must look into taking the PWM to 500kHz, it's slipped my mind over the past few days.
Later...It hasn't slipped my mind, the parts required are already on my shopping list...task multiplexing...something guys are generally bad at!
Steve A.