Elmo Motion control (Westford, MA) offers the “Whistle” digital servo drive with up to 500 watts of continuous power at 99% efficiency. The device weighs 1.76 ounces and measures 2 × 1.8 × 0.6". It interfaces to brush DC, brushless PM, and linear and/or voice coil motors. Power is provided by an external 7.5 to 95 VDC isolated DC power supply. A supply control algorithm enables the device to operate with one power supply.
Seven models offer voltages and current levels from 1 amp, 60 volts to 6 amps, 100 volts continuous operation. The drive incorporates the control capabilities of the SimplIQ family of drives that offers feedback options, programming capabilities, communications protocols, and controlled motion technology. The drive can be mounted to the motor housing or in close proximity to the motor.