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你好，不知道如果有人能帮助我，我有一个项目，一个消防队员要为我编程一个图片，它监测一个变频器，使用一个电流传感器，在一个阶段，这个变频器作出巨大的电磁波，噪音堆，我挂上一个4线液晶显示器的图片，作为嗯，我在设计这块板，不知道有没有人可以给我一些提示，让我尽量减少这个反相器的干扰，这会打乱我的照片。我打算用一张照片把它放在一个平地上，不知道我能用那些没用的插脚做什么，我不完全有信心接地，以防它们听到噪音？非常感谢您的建议。非常感谢。
以上来自于百度翻译 以下为原文 Hello Wonder if somebody could help me please, i have a project that a firend is going to program a pic for me its to monitor a frequency inverter, using a current sensor on one of the phases,, This frequency inverter makes a gigantic pile of emf, noise, i entend hooking up a 4 line lcd to the pic as well Im designing the board, wonder if anybody has any tips i could use to try to minimise any interfierence from this inverter that may upset my pic. Im going to use a pic and place it under a gnd plain, Wonder what i could do with the unused pins that are not used, im not entirly confident on grounding just in case they pick up any noise? any advice greatly appreciated. Thank you very much. 
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11个回答
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如果您需要我的意见，请尝试阅读：http://www..hip.com/for./FindPost/906637http://www..hip.com/for./FindPost/804620我的帖子。
以上来自于百度翻译 以下为原文 Try to read: http://www.microchip.com/forums/FindPost/906637 http://www.microchip.com/forums/FindPost/804620 My posts if you need my opinion. |
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你好，尼古拉，谢谢你，不知你能否在我完成我的电路板设计时帮我看一下，像请你专家看一下？
以上来自于百度翻译 以下为原文 hi nicolay, thanks for that, wonder if you culd possible take a look at my board design when i have finished as cast your expert eye over it? |
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有一件事情是关于我输入到我的图片，不确定我的逆变器输出什么频率，我用它从20hz到50hz但我确定波形中有很多高频。
以上来自于百度翻译 以下为原文 One thing ws thnking about my inputs to my pic, Not sure what frequencys my inverter is putting out, im using it from 20 to 50 hz But im sure there is lots of high frequencys in the waveform Ive gone with a low frequency filter |
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你可以在这里下载：……[链接删除]是的，鲍伯说。
以上来自于百度翻译 以下为原文 you can downloading it here: ...[link deleted] yes Bob said right. Gerald --- |
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我的板设计，在右边是嘈杂的反相器，左边是没有gnd平面的间隙，输入到pic的输入沿着gnd平面的右边运行，顶部gnd平面覆盖了整个区域。低噪声滤波器进入pic。我将在gnd平面的边缘周围放置许多通孔。Pic在底层。有人能给我一些建议吗？谢谢你
以上来自于百度翻译 以下为原文 My board deaign, to the right is noisy inverters ive left a gap of no gnd plain and inputs to pic run along right next to gnd plain, and top gnd plain covers the whole lot. Low noise filters into pic. I was going to place lots of vias around the edges of the gnd plain. Pic is on bottom layer Wonder if anybody could give me some advice on any improvments? Thank you |
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你可以在这里下载：[链接删除]感谢你鼓励盗版和盗窃知识产权。像这样剽窃知识产权，就像偷偷溜进作者家里偷钱包里的钱一样。你想为你所做的工作付出代价，你为什么不想让作者为他的工作付出代价呢？鲍勃怀特克
以上来自于百度翻译 以下为原文 you can downloading it here: [link deleted] --- Thank you for encouraging piracy and theft of intellectual property. Piracy of IP like this is the the same as sneaking into the author's house and stealing money from his wallet. You want to be paid for the work you do, why don't you want the author to be paid for his work? Bob White ok sorry. Gerald --- |
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您的板布局图像没有显示。但看来你已经成功了。您是否通过通常用于字符点阵显示的14个左右的管脚并联驱动LCD显示器？4线SPI或I2C连接（包括电源和接地）可能更好，并且更容易屏蔽。具有4个导体和屏蔽的USB电缆可能是理想的。
以上来自于百度翻译 以下为原文 Your image for the board layout does not show. But it appears you have it working. Are you driving the LCD display by parallel connection via the 14 or so pins commonly used for character dot matrix displays? A 4 wire SPI or I2C connection (including power and ground) might be better, and is more easily shielded. A USB cable having 4 conductors and a shield would probably be ideal. |
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嗨，保罗，通过14个引脚并行显示的显示器，我的最后一次尝试没有工作，我是用I2C连接，认为这是失败的原因，所以尽量保持它尽可能简单。
以上来自于百度翻译 以下为原文 Hi paul, immdriving the display through 14 pins parallel connection, My last attempt didnt work, i was using i2c connection, think that was the reason it failed, so trying to keep it as simple as possible. |
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