Koford Engineering LLC has introduced a line of compact 48-V, 40-A brushless motor drives. These drives require no external inductors for slotless or other low inductance motors. They are preprogramed and require no user set up, adjustments or programing. Unlike most drives they can operate at 100% duty cycle. Most brushless drives are limited to 95% and cannot achieve full rated motor performance.
Part numbers are available for speeds up to 100,000 rpm for a 2-pole motor or 50,000 rpm for a 4-pole motor. Both two quadrant and four quadrant versions are offered. For four quadrant units that are not powered by a battery, braking modules are available to absorb the regenerated energy. This eliminates the need for a relay and resistor for energy absorption.
For more information, visit www.koford.com.