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DC-Motor Drive Encompassing SiGe Asynchronous Control Electronics for…

Award Information

National Aeronautics and Space Administration
Award ID:
Program Year/Program:
2007 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
Arkansas Power Electronics International, Inc.
535 W. Research Center Blvd. Fayetteville, AR 72701-6559
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 2
Fiscal Year: 2007
Title: DC-Motor Drive Encompassing SiGe Asynchronous Control Electronics for Ultra-Wide (-230 ýýC to +130 ýýC) Environments
Agency: NASA
Contract: NNC07CA36C
Award Amount: $599,987.00


In Phase I, the research team formed by APEI, Inc. and University of Arkansas proved the feasibility of developing ultra-wide temperature (-230 oC to +130 oC) motor drives utilizing silicon-germanium (SiGe) asynchronous logic digital control electronics by the successful design, simulation and layout of an insensitive-delay asynchronous microcontroller. The microcontroller incorporates asynchronous-to-synchronous and synchronous-to-asynchronous interfaces (wrappers) using an IBM SiGe 5AM process. The complete asynchronous microcontroller was successfully simulated using temperature calibrated models to -230 ýýC. Electronic components needed in the development of the DC-motor power stage were first characterized down to -184 ýýC and then a complete 20W DC-motor drive power stage was successfully demonstrated while operating at cryogenic temperatures and driving a Maxon RE 25 permanent magnet DC-motor at full power (This motor is currently used on the Mars Spirit and Opportunity rovers). Ultra-wide temperature power electronics system will have a profound impact on deep space exploration craft enabling greater mobility and mission lifetime. The use of ultra-wide temperature power electronics will allow increased payload capacity of Lunar and Mars exploratory craft, while improving reliability through reduced system level complexity. The goal of this Small Business Innovation Research Phase II project is to deliver, to NASA JPL, a complete DC-motor drive that is fully functional over the entire temperature range required for lunar and Martian extreme environment exploratory robotic missions (-230 ýýC to +130 ýýC). This cryogenic DC-motor drive will encompass a SiGe-based 8051-compatible delay-insensitive asynchronous microcontroller with significantly enhanced capabilities for the advanced control of the DC-motor drive.

Principal Investigator:

Roberto M. Schupbach
Principal Investigator

Business Contact:

Sharmila D. Mounce
Design Engineer
Small Business Information at Submission:

Arkansas Power Electronics International, Inc.
535 W. Research Center Blvd. Suite 209 Fayetteville, AR 72701

EIN/Tax ID: 710810115
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No