I would like to built PWM servo motor amplifier for up to 5Amp continius current 19Amp peak current and up to 50Volts.

It should be designet to run on frequency from 15khz - 50khz ( typical 20-25khz) and three logic inputs : enable , PWM ,direction.

When PWM is low and direction is low motor is brakeing
if PWM is high and direction is high motor is brakeing.

Olso i would use LM338 for current limit.

Anyone make something like that or maybe has got circuit schematics?

I do not wish to use microcontrolers!
It should be made with logic gates (and,or,xor ) or high frequency drivers.