What Have You Done To Your Tdm Today?

[jbx]

Looks very much like the same parts.

You may even add the brand name or your own name on the blank flat area !

 

If you want to keep the modulator simple and avoid µC coding you may use just one 4093, it's enough for the job.

A second 4093 could then be used for the 50% dim time, to give a different pwm ratio and also detect nighttime.

Also the power supply is simpler with a 4093.

Just a thought...