New single chip Hall sensor for three phases brushless motor control

Bürger, F.; Besse, P.‐A.; Popović, R.S.

doi:10.1016/s0924-4247(99)00101-6

Cited by 22 publications

(14 citation statements)

References 2 publications

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“…Significantly, the voltage response of the GMI sensor is almost kept to 5 V even when a large space of 9 cm is set, we have made comparison between the GMI sensor and other rotational-velocity sensors. For instance, the rotational-velocity response amplitude of the current GMI sensor is about 10 times larger than that of the giant magnetoresistance (GMR) sensor [9], and is about 100 times larger than that of Hall sensor [10], and is about 3 times larger than that of coil [11]. Furthermore, the measurement distance of using the GMI sensor can be as large as 9 cm while maintaining a high response amplitude of 5 V, which is about several times larger than that of Hall sensor [10] and 20 times larger than that of GMR sensor [9], respectively.…”

Section: Resultsmentioning

confidence: 99%

“…For instance, the rotational-velocity response amplitude of the current GMI sensor is about 10 times larger than that of the giant magnetoresistance (GMR) sensor [9], and is about 100 times larger than that of Hall sensor [10], and is about 3 times larger than that of coil [11]. Furthermore, the measurement distance of using the GMI sensor can be as large as 9 cm while maintaining a high response amplitude of 5 V, which is about several times larger than that of Hall sensor [10] and 20 times larger than that of GMR sensor [9], respectively. The theoretical response velocity of GMI sensor is 10 MHz, therefore, there is a great potential of GMI sensor in measuring higher rotational-velocity.…”

Section: Resultsmentioning

confidence: 99%

“…Over the past few decades, a series of sensors have been developed for measurements of rotational velocity including Magnetooptical sensors [1,2], Electrostatic sensors [3,4], Magnetoresistance sensors [5][6][7][8][9], etc. [10][11][12][13][14][15][16][17]. Nevertheless, these conventional magnetic sensors generally have some weaknesses of temperature drift, slow response, low sensitivity, and resolution, which limit their applications in high rotational-velocity measurements under extreme conditions.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Accurate Measurements of the Rotational Velocities of Brushless Direct-Current Motors by Using an Ultrasensitive Magnetoimpedance Sensing System

Wang

Luo

et al. 2019

Micromachines

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Reports on measurements of the rotational velocity by using giant magnetoimpedance (GMI) sensors are rarely seen. In this study, a rotational-velocity sensing system based on GMI effect was established to measure rotational velocities of brushless direct-current motors. Square waves and sawtooth waves were observed due to the rotation of the shaft. We also found that the square waves gradually became sawtooth waves with increasing the measurement distance and rotational velocity. The GMI-based rotational-velocity measurement results (1000–4300 r/min) were further confirmed using the Hall sensor. This GMI sensor is capable of measuring ultrahigh rotational velocity of 84,000 r/min with a large voltage response of 5 V, even when setting a large measurement distance of 9 cm. Accordingly, the GMI sensor is very useful for sensitive measurements of high rotational velocity.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Accurate Measurements of the Rotational Velocities of Brushless Direct-Current Motors by Using an Ultrasensitive Magnetoimpedance Sensing System

Wang

Luo

et al. 2019

Micromachines

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“…Such a signal configuration helps to simplify the electronic circuit needed for control of micromotors. The sensor consists of three "half VH branches" placed in a Y-shape: each branch is rotated with an angle of 120 [2], [3]. This three-phase Hall sensor requires only five electrical contacts, as shown in Fig.…”

Section: Hall-effect Sensor Implementationmentioning

confidence: 99%

Magnetic Angular Encoder Using an Offset Compensation Technique

2004

Self Cite

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Quality and resolution of integrated microsystems using Hall sensors dedicated to an angular encoder are strongly dependent on the accuracy of the relative position of Hall sensors and on the offset of electronic front end circuitry. In this paper, we describe a CMOS microsystem built on two integrated circuits. This contactless encoder microsystem gives three sine and square signals with a phase shift of 120 and provides an angular error of less than 4 without external trimming or feedback. The Hall sensor assembly with the engine consists of fixing a small permanent magnet on the rear axis of the motor. Then, the sensor is positioned in front of this magnet.

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“…Electromagnetic sensors are widely used for angular speed sensing. Electromagnetic angular speed sensing relies on placing a permanent magnet on a rotor, while having a Hall effect sensor on a stator measuring the change of the magnetic field due to rotation of the magnet on the rotor [10]- [12]. Alternatively, a giant magneto-resistive (GMR) sensor is used and it is placed between a ferromagnetic toothed gear on a rotor and a permanent magnet on a stator [13]- [15].…”

Section: Introductionmentioning

confidence: 99%

Stator-Free Low Angular Speed Sensor Based on a MEMS Gyroscope

Mustafa

Cheng

Oelmann

2014

IEEE Trans. Instrum. Meas.

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This paper demonstrates the implementation and tests the performance of a low angular speed sensor for rotary machinery based on a microelectromechanical system gyroscope. First, an experimental test setup is presented that features a top-of-the-line optical absolute angle encoder as a reference for characterizing the proposed sensor in a controlled environment chamber. A prototype of the proposed sensor has been designed and implemented with its architecture and hardware design described in detail. For the experimental purposes, a wireless synchronization scheme between the reference and the gyroscopic sensor is also discussed. The experimental measurement has taken place to benchmark the performance of the realized sensor. The experimental data have been processed and analyzed, and the results have been presented. The gyroscopic sensor has shown satisfactory results. The sensor has an accuracy of 0.06°/s, standard deviation of 0.45°/s, and hysteresis of 0.08°/s. Index Terms-Angular speed, gyroscope, microelectromechanical devices, rate sensor rotating bodies, rotating machine measurements. 0018-9456

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New single chip Hall sensor for three phases brushless motor control

Cited by 22 publications

References 2 publications

Accurate Measurements of the Rotational Velocities of Brushless Direct-Current Motors by Using an Ultrasensitive Magnetoimpedance Sensing System

Accurate Measurements of the Rotational Velocities of Brushless Direct-Current Motors by Using an Ultrasensitive Magnetoimpedance Sensing System

Magnetic Angular Encoder Using an Offset Compensation Technique

Stator-Free Low Angular Speed Sensor Based on a MEMS Gyroscope

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