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(找人开发)基于ATT7022芯片完成三相电的电气参数采集包括多次谐波
2020-5-31 09:40
- 创业|外包|承接
- 1
- 875
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
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看到一个Pt100测温放大电路,不太清除如何消除线阻的原理
2019-8-21 08:47
- 电子技术交流论坛
- 21
- 37720
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
三相电力仪表,具有谐波分析功能
2019-3-31 09:14
- 创业|外包|承接
- 4
- 874
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
数显电测量仪表开发
2019-3-31 09:09
- 创业|外包|承接
- 4
- 1160
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
三相整流电源
2019-3-31 09:07
- 创业|外包|承接
- 1
- 611
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
4-20ma输出
2019-3-31 09:06
- 创业|外包|承接
- 1
- 548
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
无线红外转发器
2019-3-31 09:04
- 创业|外包|承接
- 2
- 756
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
高精度温度采集电路
2019-3-31 08:53
- 创业|外包|承接
- 20
- 2334
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
求一精度高的三线式PT100采样电路
2019-3-31 08:06
- 创业|外包|承接
- 1
- 1047
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
单相/三相电能计量板+Lora无线传输系统
2019-3-31 07:59
- 创业|外包|承接
- 2
- 831
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
1mA恒流源设计,要求精度在0.1%
2019-3-31 09:05
- 创业|外包|承接
- 7
- 1528
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
寻求长期稳定的电能表方案开发商
2019-7-8 11:28
- 创业|外包|承接
- 6
- 1290
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
2
3
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