Compact Low-Power Driver for Deformable Mirror Systems, Phase I

Metadata Updated: May 2, 2019

Boston Micromachines Corporation (BMC), a leading developer of unique, high-resolution micromachined deformable mirrors (DMs), will develop a compact, low-power, high-voltage multiplexed driver suitable for integration with those DMs in space-based wavefront control applications. The proposed driver architecture will drastically reduce power consumption and size. Based on parameters measured using an existing 993-actuator DM that BMC developed for NASA in support of the Terrestrial Planet Finding Coronagraph program, and using projections from preliminary experiments conducted for this proposal, we predict at minimum a hundred-fold reduction in power consumption in the prototype driver to be produced in Phase I, and a tenfold reduction in size, while maintaining high precision, reducing electronics driver cost, and reducing interconnection complexity. Additional reductions in power consumption and another tenfold reduction in size will follow in Phase II work when the core design is transferred to implementation in application-specific integrated circuit (ASIC) format.

Phase I work involves collaboration between BMC and Boston University (BU). A leading electrostatics research group at BU will develop a novel multiplexed high-voltage driver architecture that comprises a significant departure from previous MEMS DM drivers. A single D/A converter and high-voltage amplifier module will drive the entire array through a row-column addressing scheme. This approach will reduce operational power consumption by two orders of magnitude from ~80W to ~0.8W. We will also integrate the DM and the mirror into a compact package. The MEMS DM and the electronics will be co-mounted on the same PC board. This will reduce driver volume by an order of magnitude, from ~20,000cc to 2000cc. It will also eliminate the need for high density cabling and buffer amplifiers used to drive them, simplifying system operation and further reducing power consumption and size.

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Public: This dataset is intended for public access and use. License: U.S. Government Work

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Metadata Created Date August 1, 2018
Metadata Updated Date May 2, 2019

Metadata Source

Harvested from NASA Data.json

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Resource Type Dataset
Metadata Created Date August 1, 2018
Metadata Updated Date May 2, 2019
Publisher Space Technology Mission Directorate
Unique Identifier TECHPORT_9058
Maintainer Email
Public Access Level public
Bureau Code 026:00
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Metadata Catalog ID
Schema Version
Catalog Describedby
Datagov Dedupe Retained 20190501230127
Harvest Object Id 7eee4391-d24a-42f6-bc84-90608c7b8d21
Harvest Source Id 39e4ad2a-47ca-4507-8258-852babd0fd99
Harvest Source Title NASA Data.json
Data First Published 2010-07-01
Homepage URL
Data Last Modified 2018-08-02
Program Code 026:027
Source Datajson Identifier True
Source Hash d036e62315dd1f9ad821b584de40d79371310ac8
Source Schema Version 1.1

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