R.D. Sochol, A.T. Higa, R.R.R. Janairo*, S. Li†, L. Lin‡ Department of Mechanical Engineering, Berkeley Sensor and Actuator Center, University of California, Berkeley, CA, USA 668 Sutardja Dai Hall, Berkeley, CA 94720, USA Joint Graduate Group in Bioengineering, University of California, Berkeley & University of California, San Francisco, CA, USA Department of Bioengineering, University of Cali...

This study deals with the optimization control of a single-phase brushless DC motor (BLDCM) with Hall sensor. A simple modeling method with feasible parameter identification is adopted to meet characteristics of singlephase BLDCM. With the linear Hall sensor feedback, the advantages of current-mode control scheme and softcommutation scheme are proposed to achieve maximum efficiency over the ent...

In this modern era, most of the equipment is electrostatic type. But still, in measuring current, we use conservative type. So, we developed a Modified coreless Hall Effect based current sensing method with magnetic shielding. The coreless Hall Effect based measurement method uses hall sensors without iron core. Hall sensors are firmly fixed on the insulated current carrying conductor. The magn...

Due to invisibility and complexity of the underground displacement monitoring, there exit few practical monitoring sensors capable of monitoring the underground horizontal and vertical displacements simultaneously. A novel electromagnetic underground displacement sensor able to monitor both the horizontal and the vertical displacements was proposed in our previous studies and abbreviated as the...

integrated switches Sandra Bellekom, Song Yin and Anton Bakker Delft University of Technology Department of Electrical Engineering, Electronic Instrumentation Laboratory, Mekelweg 4, 2628 CD Delft, The Netherlands Tel. +31 (0)15-278 3342 fax. +31 (0)15-278 5755 [email protected] Abstract|Hall plates are magnetic sensors. Made in a standard IC process they have the advantage of being cheap...

Five different Hall Effect sensors were modeled and their performance evaluated using a three dimensional simulator. The physical structure of the implemented sensors reproduces a certain technological fabrication process. Hall voltage, absolute, current-related, voltage-related and power-related sensitivities were obtained for each sensor. The effect of artificial offset was also investigated ...

A current sensor employing a Hall-based field sensing ASIC in combination with a current transformer is proposed. The sensor is characterized by a measuring range of ±50A, an upper bandwidth limit of 20MHz and high dv/dt-immunity up to 10kV/μs. The sensor functional principle and dimensioning are discussed in detail. Parameters determining the sensor bandwidth are clarified, the theoretical con...