Misan,
I found this on YouTube: [www.youtube.com]
This AS5134 chip seems to integrate every component required and only needs a single 2-pole magnet rotating over the center of the chip to function, so that effectively removes all my previous reservations about the use of hall effect sensors. Resolution is 8.5 bits i.e. 360cpr. You can ask austriamicrosystems for a list of compatible magnets.
[ams.com]
You may want to check prices, ask for an engineering sample and whether austriamicrosystems is willing to lend some field production engineering to your BLDC design to integrate their chip.
I found this on YouTube: [www.youtube.com]
This AS5134 chip seems to integrate every component required and only needs a single 2-pole magnet rotating over the center of the chip to function, so that effectively removes all my previous reservations about the use of hall effect sensors. Resolution is 8.5 bits i.e. 360cpr. You can ask austriamicrosystems for a list of compatible magnets.
[ams.com]
You may want to check prices, ask for an engineering sample and whether austriamicrosystems is willing to lend some field production engineering to your BLDC design to integrate their chip.