A Hall Sensor Auxiliary Circuit with Noise Rejection and Time Interval Capture Functions for BLDC Motors
Abstract:This paper presents a Hall sensor auxiliary circuit, what provided two functions: first is the Hall sensor signal noise filter caused by temperature or EMI; the other is speed calculation. For brushless DC (BLDC) motors, the Hall sensors originally are used to detect rotor position and decide the timing of commutation, but the signal is easily to be influenced. The proposed scheme is combined with a commutation trigger block and a timing latch block to achieve above two functions. This circuit is based on the VHDL language and implemented in FPGA, and then the synthesizing simulation results and experimental results are presented to prove this circuit is workable.
Document Type: Research Article
Publication date: May 1, 2012
More about this publication?
- The growing interest and activity in the field of sensor technologies requires a forum for rapid dissemination of important results: Sensor Letters is that forum. Sensor Letters offers scientists, engineers and medical experts timely, peer-reviewed research on sensor science and technology of the highest quality. Sensor Letters publish original rapid communications, full papers and timely state-of-the-art reviews encompassing the fundamental and applied research on sensor science and technology in all fields of science, engineering, and medicine. Highest priority will be given to short communications reporting important new scientific and technological findings.
- Editorial Board
- Information for Authors
- Subscribe to this Title
- Terms & Conditions
- Ingenta Connect is not responsible for the content or availability of external websites