Integrated GMR angle sensor for electrical commutated motors including features for safety critical applications

1Citations
Citations of this article
5Readers
Mendeley users who have this article in their library.

Abstract

An integrated GMR (Giant Magneto Resistance) angle sensor will be presented which is designed to fulfill requirements for electrical commutated motor-drives. These motors use sine-commutation for the coils and need the angle of the motor-shaft in accuracy ranges below 1° with update-rates of 50-100μs. This integrated GMR Angle sensor solves this problem using integrated GMR Angle-Sensors on top of the silicon signal processing chip. The differential GMR-bridge signals are converted to the digital domain by sigma-delta ADCs and these raw-signals are error-compensated. An additional autocalibration feature is implemented to improve the accuracy during operation. The very fast angle-measurement is performed using parallel analog signal processing, 24MHz finite state machine with dedicated peripherals and an 8Mbit/s SPI interface. An additional feature to reduce the time delay is the implemented angle-value prediction. Built-in selftests, switchable voltages for signal-path tests and multiple safety voltage comparators are implemented for safety-critical applications.

Cite

CITATION STYLE

APA

Granig, W., Weinberger, M., Reidl, C., Bresch, M., Strasser, M., & Pircher, G. (2010). Integrated GMR angle sensor for electrical commutated motors including features for safety critical applications. In Procedia Engineering (Vol. 5, pp. 1384–1387). Elsevier Ltd. https://doi.org/10.1016/j.proeng.2010.09.373

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free