Piezo actuators and positioning systems require unique drive and control electronics. DSM has developed electronics expertise and products that keep pace with their mechanical counterparts. DSM's electronic products include a family of linear piezo amplifiers and piezo drivers. DSM also offers custom circuit design services for piezo-based applications.
DSM's linear piezo amplifiers provide open-loop driving signals or closed-loop servo control of piezoelectric positioning systems. Our piezo amplifiers are typically sold as single channel benchtop or OEM instruments; custom multi-channel styles are also available.
Voltage Follower (VF) Series
DSM's VF linear piezo amplifiers are high-quality voltage followers that amplify a low voltage input signal.
VF-90: Compact OEM format providing 90 mA maximum continuous and peak current for piezo devices rated for up to 150V, 200V or for piezo benders (bimorphs) rated for up to ± 100V.
VF-500: High-power benchtop instrument providing 500 mA maximum continuous current (1 A peak) for driving piezoelectric devices rated up to 200V.
Servo Amplifier (SA) Series
DSM's SA-500 servo amplifier includes the functionality of the VF-500 and adds additional capabilities for communication, I/O, and stand-alone servo control of piezo positioning systems. The SA-500 is typically sold as part of a custom system using a customer's specified feedback device. High-resolution position control can be achieved using the SA amplifier to close the loop on an analog or digital feedback signal integrated into the positioning system.
Motor Driver (MD) Series
DSM's MD-90 two channel piezo amplifier is DSM’s latest addition to a growing selection of high-quality piezo electronics.
The unit can be used in two primary ways as a:
1) 2-channel piezo motor driver complete with quadrature encoder feedback and
2) 2-channel piezo device amplifier with analog feedback for both closed and open-loop operation.
Built on the proven performance of DSM’s VF-90 amplifiers, the MD-90 offers a 2-channel linear amplifier with integrated controller. Each channel is independently controlled. Preprogrammed waveforms for DSM’s motors are included. Custom waveforms can be programmed, per your specifications, to run any 2-channel device within the device specifications.