Okay Gary,
Good clarification of the Hall operation and distance issue. From a simplified approach the position of the Hall between the coil and magnet appears to be problematic. If as you suggest that the Hall/magnet field is the trigger, then the coil magnetic field is redundant and skews the control aspect in this instance - makes sense.
I will note that the Hall device position is not centered on the magnets (Page 9 of the SPG.pdf). This vertical position, if varied up or down, should influence the total on time, when taking in consideration the magnetic field shape from a circular magnet (cone) versus a block magnet (rounded rhomboid or something). Why else does the author show the pic and the off center Hall position in the .pdf? Point of max field strength is always the magnet center. All very engaging, but of uncertain value to Jules at this point.
I believe I am slowly being sucked into this project. Thanks for the diversion.
Thanks guys,
Yaro
Originally posted by Gary Hammond
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I will note that the Hall device position is not centered on the magnets (Page 9 of the SPG.pdf). This vertical position, if varied up or down, should influence the total on time, when taking in consideration the magnetic field shape from a circular magnet (cone) versus a block magnet (rounded rhomboid or something). Why else does the author show the pic and the off center Hall position in the .pdf? Point of max field strength is always the magnet center. All very engaging, but of uncertain value to Jules at this point.
I believe I am slowly being sucked into this project. Thanks for the diversion.
Thanks guys,
Yaro
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