PI (Physik Instrumente) LP has released the new model E-619, a high-power piezo amplifier designed to drive high-capacitance multilayer piezo actuators with rapid rise times or high frequencies. As a special form of electro-ceramics, piezo materials are the industry standard when it comes to speed, force and precision in a small package.
Providing sink/source currents up to 10 amps and an output voltage swing of 160V-pp (-30V to +130V), the new piezo driver delivers up to 1,200 watts of peak power. Despite its high performance, this amplifier is efficient due to its energy recovery circuitry. A temperature sensor input provides overheating protection of piezo actuators.
Piezo actuators allow response times in the microsecond range. This behavior is beneficial for operating fast switches, valves, micromachining and micro-dispensing equipment, as well as for active optics and vibration cancellation applications.
The E-619 high power piezo driver comes in two standard versions with a maximum bandwidth of 20kHz and 3kHz, respectively. Optional upgrade modules for closed-loop position servo control and digital control via a USB and TCP/IP interface are also available.
Related Glossary Terms
Reduction or removal of workhardening effects, without motion of large-angle grain boundaries.