Journal ArticleDOI
Position Measurement in Industrial Drives by Means of Low-Cost Resolver-to-Digital Converter
Ciro Attaianese,Giuseppe Tomasso +1 more
TLDR
A fully integrated board for resolver-to-digital conversion is proposed, based on a combined analog/digital circuit, which allows one to track the shaft angle of a standard resolver in a digital form.Abstract:
A fully integrated board for resolver-to-digital conversion is proposed in this paper. It is based on a combined analog/digital circuit, which allows one to track the shaft angle of a standard resolver in a digital form. Furthermore, the board also provides the feeding signal for the resolver-rotor circuit. All the tuning and configuration settings, which allow one to adapt different kind of resolvers to the proposed system, can be easily implemented directly on the board. The final assembly is a compact low-cost resolver-to-digital converter. The entire board design and implementation are described in this paper. In addition, several tests at different resolver speeds have been performed for validation.read more
Citations
More filters
Proceedings Article
A Resolver-to-Digital Conversion Method for Fast Tracking
TL;DR: In this paper, a new R/D (Resolver-to-Digital) conversion method is proposed, in which a bang-bang type phase comparator is employed for fast tracking.
Journal ArticleDOI
Software-Based Resolver-to-Digital Converter for DSP-Based Drives Using an Improved Angle-Tracking Observer
TL;DR: The proposed resolver-to-digital conversion method is based on synchronous demodulation of resolver's output signals and a modified angle-tracking observer is proposed to extract the rotor angle in high speeds as well as in low speeds.
Journal ArticleDOI
High-Accuracy All-Digital Resolver-to-Digital Conversion
Joan Bergas-Jané,C. Ferrater-Simón,G. Gross,Rodrigo Ramírez-Pisco,Samuel Galceran-Arellano,Joan Rull-Duran +5 more
TL;DR: In this paper, a high-accuracy all-digital resolverto-digital (R/D) converter is presented with software implemented by frequency-shifting techniques and a decoupled double synchronous reference frame-based phase-locked loop (DSRF-PLL).
Journal ArticleDOI
A Novel Absolute Magnetic Rotary Sensor
TL;DR: To measure the angular position of motors, robot joints, etc., an absolute magnetic rotary position sensor is developed, which possesses small-size, light, robust, and easy-to-integrate properties.
Journal ArticleDOI
A Resolver Angle Estimator Based on Its Excitation Signal
TL;DR: A new low-cost method for converting the amplitudes of these sine/cosine transducer signals into a measure of the input angle without using lookup tables is proposed, which offers the advantage of robustness to amplitude fluctuation of the transducing signal.
References
More filters
Journal ArticleDOI
Resolver signal requirements for high accuracy resolver-to-digital conversion
TL;DR: Bounds on the position accuracy achievable in practical resolver-based position-sensing systems are determined from expressions for the position error reported by an R/D converter.
Journal ArticleDOI
Techniques for improving resolver-to-digital conversion accuracy
TL;DR: It is shown that quadrature error can be eliminated by simple algebraic manipulation of the resolver signals and that amplitude imbalance can be used to reduce the position error due to inductive harmonics.
Journal ArticleDOI
High-performance speed measurement by suppression of systematic resolver and encoder errors
A. Bunte,S. Beineke +1 more
TL;DR: By means of this new scheme, dynamic and smooth running characteristics of drive systems are improved considerably and the dynamic of the speed control is not affected.
Proceedings Article
A Resolver-to-Digital Conversion Method for Fast Tracking
TL;DR: In this paper, a new R/D (Resolver-to-Digital) conversion method is proposed, in which a bang-bang type phase comparator is employed for fast tracking.
Journal ArticleDOI
A resolver-to-digital conversion method for fast tracking
TL;DR: A resolver-to-digital (R/D) conversion method in which a bang-bang type phase comparator is used for fast tracking in which the low-pass filter needed to reject carrier signal and noise is eliminated from the R/D conversion loop.