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您好,我正在开发一个需要位置反馈的项目。 我为此任务选择了AS5600。 首先,我使用了手册(选项B)中提供的电路,该电路由连接器,2个电容器和5600 IC组成。 由于某种原因,我不能使该单元在模拟模式下工作。 无论磁铁位置如何,我总是在输出上获得5v。 在将磁铁放置在IC附近的任何地方之前,我得到了这个值。 我已经将磁铁从IC移开了,结果相同。 重要提示我应该提到的是,磁铁比数据表中指定的要强很多。 磁铁规格: 尺寸:1/4“od x 1/8”id x 1/4“厚 材料:NdFeB,N42级 电镀/涂层:Ni-Cu-Ni(镍) 磁化方向:直径 表面场:5299高斯 Brmax:13,200高斯 BHmax:42 MGOe 这只是一个磁铁太多的问题或其他我错过的东西? 问候 以上来自于谷歌翻译 以下为原文 Message: Hello, I am working on a project that requires position feedback. I chose the AS5600 for this task. To start with I used the circuit that was provided in the manual (option B) which consists of a connector, 2 capacitors and the 5600 IC. For some reason I can’t get the unit working in the analog mode. I get 5v on the output at all times regardless of magnet position. I got this value before the magnet was placed anywhere near the IC. I’ve moved the magnet away from the IC with same results. Important note I should mention is that the magnet is a lot stronger then what was specified in the data sheet. Magnet spec: Dimensions: 1/4" od x 1/8" id x 1/4" thick Material: NdFeB, Grade N42 Plating/Coating: Ni-Cu-Ni (Nickel) Magnetization Direction: Diametrical Surface Field: 5299 Gauss Brmax: 13,200 Gauss BHmax: 42 MGOe Is this simply a problem of too much magnet or something else I’m missing? Regards |
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4个回答
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你好@ROVguy,
很抱歉延迟联系。 由于我没有使用过该芯片,因此我已将您的问题转发给我的工程师和产品经理,他们与AMS合作,看看我们是否能得到答案。 我一听到后就会更新这篇文章。 谢谢 - 罗伯特· 以上来自于谷歌翻译 以下为原文 Hello @ROVguy, Sorry for the delay in getting in touch. Since I have not worked with this chip I have forwarded your question to my Engineer and Product Manager who work with AMS to see if we can get an answer. As soon as I hear back i will update this post. Thank you -Robert |
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嗨ROVguy
您是否按照数据表第23页中的说明进行了量程编程? 干杯, 贺客++ 以上来自于谷歌翻译 以下为原文 Hi ROVguy Did you make the range programming as explained on page 23 in the datasheet? Cheers, heke++ |
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@ROVguy
对不起,拖延很长时间。 我终于从FAE那里听到了回复。 以下是我们收到的评论。 您是否需要针对您的应用进行零位编程? 因为只在模拟模式下使用芯片,所以没有必要将PGO引脚短接到GND,你必须让它悬空。 此外,您使用的磁铁看起来并不像传感器完全饱和的强度。 气隙有多大? 您是否尝试更换传感器? 如果还有其他问题,请告诉我,我可以保持联系。 - 罗伯特· 以上来自于谷歌翻译 以下为原文 @ROVguy Sorry for the long delay. I finally heard back from our FAE. Here is the comments we received. Do you need Zero Position Programming for your application? Because to use the chip in analog mode only, it’s not necessary to short PGO Pin to GND, you have to leave it floating. Furthermore it doesn’t look like the magnet you are using is that strong that the sensor will be fully saturated. How big is the air gap? Did you try to replace the sensor?Please let me know if there are further questions and I can keep in touch. -Robert |
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