DC-Motor Drive Encompassing SiGe Asynchronous Control Electronics for Ultra-Wide (-230 ýýC to +130 ýýC) Environments

Period of Performance: 01/01/2007 - 12/31/2007

$600K

Phase 2 SBIR

Recipient Firm

Arkansas Power Electronics International
535 W. Research Center Blvd., Suite 209
Fayetteville, AR 72701
Firm POC
Principal Investigator

Abstract

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).