23 July 2014 Electronics design for a high precision image stabilization system
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Abstract
A very high precision Image Stabilization System has been designed for the Solar Orbiter mission. The different components that have been designed are the Correlation Tracking Camera (CTC), Tip-Tilt controller (TTC) and the system control in order to achieve the specified requirements. For the CTC, in order to achieve the required resolution of 12 bits and reduced power consumption, we used an external ADC. For the TTC, a special focus has been dedicated to a 55 V linear regulator in a QUASI-LDO configuration and a Tip-Tilt driver in a transconductance amplifier architecture. Results show that the full system reaches an attenuation of 1/10th of a pixel at 10Hz. The TTC provides a high voltage span, enough slew-rate and the needed stability levels.
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A. Casas, D. Roma, M. Carmona, J. M. Gómez, J. Bosch, M. López, J. Sabater, A. Herms, T. Maue, E. Nakai, R. Volkmer, W. Schmidt, "Electronics design for a high precision image stabilization system", Proc. SPIE 9154, High Energy, Optical, and Infrared Detectors for Astronomy VI, 91542J (23 July 2014); doi: 10.1117/12.2054885; https://doi.org/10.1117/12.2054885
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