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Hall Effect Circuits
Last Updated on:
Friday, April 25, 2008 05:11 PM |
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| Links to electronic circuits, electronic schematics, designs for
engineers, hobbyists, students & inventors: |
| 3-ph BLDC Drive Control with Hall Sensors: This reference design
describes a 3-phase 4-quadrant sensor BLDC motor drive, which can run in both a speed open loop and a speed closed loop. The application is
designed for MC68HC908MRxx family dedicated to motor control applications. This reference design includes a description of the Motorola
68HC908MR32 features, basic motor theory, system design concept, hardware implementation, and software design including the PC Master
visualization tool. (circuit design added 3/05) |
| GMR sensors manage batteries: 09/02/99 EDN-Design Ideas / (Electronic
circuit added 7/03) The past few decades have seen remarkable progress in magnetic-sensor technology. Early and current sensors exploit the
Hall effect; more recent devices use an effect called giant magnetoresistance (GMR). GMR sensors use semiconductor processing of materi... |
| Method offers fail-safe variable-reluctance sensors: 11/22/01 EDN Design
Ideas (added 1/05) Variable-reluctance sensors are preferred for industrial and automotive environments, because they sustain mechanical
vibration and operation to 300 C. In most applications, they sense a steel target that is part of a rotating assembly. Because the unprocessed
signal amplitude is proportional to target speed, a sensor whose signal-processing circuitry is designed for high speed cease... ... |
| Monitor high side current without an external supply: 03/01/01 EDN-Design
Ideas / (Electronic circuit added 7/03) Typical high-side current-sensing circuits require a dc source that is 2.5 to 13V greater than the V+
high-bus voltage ( Figure 1 ). Generating this supply is painful in many situations.… |
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