Optoisolators simplify amplifier design

Joseph Wee Ting

doi:10.1117/12.738707

20 September 2007 Optoisolators simplify amplifier design

Joseph Wee Ting

Proceedings Volume 6695, Optics and Photonics for Information Processing; 669510 (2007) https://doi.org/10.1117/12.738707
Event: Optical Engineering + Applications, 2007, San Diego, California, United States

Abstract

Simplicity and low parts count are key virtues to this high voltage amplifier. Optoisolators replace complex high voltage transistor biasing schemes. This amplifier employs only 2 optoisolators, 16 high voltage mosfets transistors, 2 low voltage ones, 6 linear IC's and a score of passive components. Yet it can amplify opamp signals to 5 kV peak-to-peak from DC to sine waves up to 20 kHz. Resistor feedback guarantees the fidelity of the signal. It can source and sink 10 mA of output current. This amplifier was conceived to power ion traps for biological whole cell mass measurements. It is a versatile tool for a variety of applications.

Citation Download Citation

Joseph Wee Ting "Optoisolators simplify amplifier design", Proc. SPIE 6695, Optics and Photonics for Information Processing, 669510 (20 September 2007); https://doi.org/10.1117/12.738707

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