P
Phil Allison
Guest
"John Fields"
"Phil Allison"
** It is totally true.
** Total BOLLOCKS.
The available torque is the SAME as as with the equivalent DC voltage
input.
Fields is blathering.
....... Phil
"Phil Allison"
The other thing that's nice about PWM'ing a motor is that there's no
loss in torque as speed is lowered as it is when voltage is lowered.
** Completely wrong.
PWM of the DC supply to a motor has the same effect on available torque
and
free running rpm as varying the DC voltage to that motor.
---
Not true,
** It is totally true.
** Same goes for PWM drive too.since lowering the voltage into the motor in order to reduce
its speed will also lower its stall torque and cause excessive power
dissipation and heating to occur if the lowered stall torque is
exceeded.
PWM'ing the motor will cure that problem by allowing the higher stall
torque available using the higher voltage
** Total BOLLOCKS.
The available torque is the SAME as as with the equivalent DC voltage
input.
Fields is blathering.
....... Phil