Eltrol Corporation/Products & Services

ELTROL offers a broad range of servo amplifiers at competitive prices, with design assistance for your custom amplifier requirements.

Linear control is especially important for high performance
position or velocity control systems and noise sensitive
environments where PWM switching cannot be tolerated. We
bring together the latest in digital and analog technology to
produce the highest performance linear servo amplifiers in the
industry. Our digital models feature a high speed DSP for
easy-to-use control and monitoring functionality. Our proprietary
design for the linear power stages provides the ultimate in
ultra-low force/torque ripple for smooth motion.

PWM amplifiers are suitable for a wide range of applications with
greatly reduced power dissipation in comparison with linear
servo amplifiers. Our PWM amplifiers provide closed loop four
quadrant PWM control of velocity or force or torque of linear or
rotary motors (brush or brushless). The amplifiers accept
velocity feedback via tachometer, encoder, or Hall sensors. Our
fully digital DSP-based PWM amplifiers are software configurable
for maximum flexibility and easy set up.

Our phase locked servos are ideal for ultra-precise speed
regulation of brushless motors over a broad range of speeds,
including greater than 50,000 RPM. Velocity feedback can be
derived from the motor commutation sensors, incremental
encoder, or a laser scanner. The high efficiency switch mode
power output stage employs a four-quadrant PWM drive
scheme, which minimizes EMI in noise sensitive applications and
improves motor efficiency. Frequency synthesizer circuits provide
a programmable frequency (speed) command from a precise
crystal reference.

Linear stages, air bearings, gantry
systems, IC manufacturing and
inspection, high accuracy
placement, laser machining, optical
positioning.

Wheel drives, X-Y stages, air
bearings, robotic systems, factory
automation and IC manufacturing
and inspection.

Laser scanners, high speed air
bearing spindles, high accuracy
machining, high speed material
sorting,hard drive head testers,
wafer spinners and centrifuge.