Originally Posted by vger  Ok, so... the drive limits the current. Then you are not actually supplying 20X the voltage to the motor.
When I retrofitted a pair of 2 KW servo drives last year with newer drives, the size reduction was amazing. Old massivly parallel bipolar transistor VS PWM FETs.
I missed the "gecko" in eloids post 
Steve |
as per geckco application note
The power supply voltage should be
between 3 to 25 times the motor’s rated voltage. If it is less than 3 times, the drive may not
operate smoothly and motor heating is excessive if it is more than 25 times the motor’s voltage.