An ultra-low noise, high-voltage piezo driver
Instrumentation and Detectors
2016-12-13 v2 Atomic Physics
Abstract
We present an ultra-low noise, high-voltage driver suited for use with piezoelectric actuators and other low-current applications. The architecture uses a flyback switching regulator to generate up to 250V in our current design, with an output of 1 kV or more possible with small modifications. A high slew-rate op-amp suppresses the residual switching noise, yielding a total RMS noise of V (1 Hz--100 kHz). A low-voltage (V), high bandwidth signal can be summed with unity gain directly onto the output, making the driver well-suited for closed-loop feedback applications. Digital control enables both repeatable setpoints and sophisticated control logic, and the circuit consumes less than 150mA at V.
Cite
@article{arxiv.1609.03607,
title = {An ultra-low noise, high-voltage piezo driver},
author = {N. C. Pisenti and A. Restelli and B. J. Reschovsky and D. S. Barker and G. K. Campbell},
journal= {arXiv preprint arXiv:1609.03607},
year = {2016}
}