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FYI: Magnetic encoder ICs

 
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Jan



Joined: 08 Apr 2007
Posts: 10
Location: Germany, Greifswald to be precise

PostPosted: Sat Apr 26, 2008 2:07 pm    Post subject: FYI: Magnetic encoder ICs Reply with quote

I just found some cool ICs and wanted to let you know:

AS5046 by AMS
http://www.austriamicrosystems.com/03products/products_detail/AS5046/description_AS5046.htm

Basing on Hall sensors and a custom CORDIC processing engine they can sense the rotational position of a magnet with up to 12 bit resolution. The device comes in TSSOP-16 package and seems to be pretty straight-forward to use. Two different serial interfaces are offered (SPI and I2C), there are analog and PWM outputs as well.

AFAIR the position update rate is > 100 Hz in high res mode.

The manufacturer is offering free samples.

Jan
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ginge
Site Admin


Joined: 14 Jan 2006
Posts: 1030
Location: Manchester, UK

PostPosted: Sun Apr 27, 2008 9:55 pm    Post subject: Reply with quote

Hi jan,

Pretty impressive device. I love how the manufacturer goes out of the way to provide sdk and good examples, as well as all of the calculations you need to mount the magnet.

Good find. I will try to get some samples to play with.

Thanks!

Barry
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wurpfel



Joined: 20 Dec 2006
Posts: 25
Location: swiss

PostPosted: Mon Apr 28, 2008 9:32 am    Post subject: Reply with quote

Hi Jan

I use some AMS-devices and are very impressed by the performance and easy-of-use Very Happy

tests on those devices were done:
brushless-encoder out of 10bit 5043 for my powerbike and RCmodels, VSRengines, up to 30k rpm!
5046 for real 12bit position of servos and joysticks
12bit ADsampling up to 50ksps, made a LA/USBoszi out of this device
LDO for the wireless-device, superlow ripple without expencive filter
digital potentiometers controlled by I2C for sensorPCB/OPAMPs
linear amplification devices for analog-sensors
fast comparators for sensorlessBL-esc

now I placed my first "big" order to put those devices in commercial products.
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johnmicy



Joined: 07 Dec 2009
Posts: 1

PostPosted: Mon Dec 07, 2009 12:13 pm    Post subject: re: Reply with quote

thanks for postings Smile
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barryfzr



Joined: 27 Aug 2008
Posts: 13

PostPosted: Mon Jan 04, 2010 6:27 pm    Post subject: Reply with quote

yes they are lovely to use

http://www.facebook.com/photo.php?pid=10515108&o=all&op=1&view=all&subj=50642505762&aid=-1&id=769460211
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stone76567



Joined: 01 Oct 2010
Posts: 8

PostPosted: Thu Nov 11, 2010 2:57 am    Post subject: Reply with quote

hi to all..
thanks for all the information you given in this site..
btw this is my first visit in this site and thanks for accepting me..
thanks a lot and God Bless..
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