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>>Motors
Separately excited field allows adjustment of torque, power
factor and efficiency at any speed. Allows lower supply
voltages with high speed operation along with high torque
output to satisfy demanding applications.
Low starting currents are possible when
used with a brushless DC amplifier since Volt/Amp transforms
between the input supply and the armature occur with minimal
losses.
Brushless DC drives allow variable speed,
variable torque and constant torque applications, plus very
high speed operation.
Energy densities as high as one horsepower
per pound (1.64 Kw/Kg) machine weight at high speeds.
Peak efficiencies as high as 97% with
an average operating efficiencies as high as 88% over a
load range of 10% to 100% .
Synchronous operation allows line
voltage of AC inverter use to provide fixed or variable
speed operation.
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