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请问大家如何放大2.5MHz的微弱电压信号啊
2014-8-15 19:51
- 电路赏析
- 34
- 4410
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这个充电电路,最终关不断?
2014-7-6 11:51
- 电路赏析
- 35
- 4498
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
贡献个低成本的手机充电器原理图给大家
2015-9-11 20:42
- 电路赏析
- 83
- 14497
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
单键开关机电路资料分享并散分
2020-8-31 14:48
- 电路赏析
- 116
- 22904
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
RC522读写RFID模块资料分享(5个厂家资料含PCB)
2020-2-5 11:27
- 电路赏析
- 189
- 41573
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
超声波传感器资料(含程序)
2020-4-10 18:05
- 电路赏析
- 154
- 23680
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
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21论坛怎么改名字啊
2022-4-13 15:07
- 电路赏析
- 18
- 7120
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
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申请的样品,和代理催了几个月终于收到了
2014-7-9 08:38
- ST MCU
- 37
- 4656
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
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环路补偿很容易(二)
2015-10-15 21:10
- 德州仪器模拟论坛
- 13
- 2745
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
发3个小万用表的图片
2019-10-6 20:59
- 电路赏析
- 119
- 15832
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
发个2家步进驱动器厂家的照片
2014-6-2 19:38
- 电路赏析
- 34
- 3630
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
发几张LCR测试仪的照片
2014-6-3 13:28
- 电路赏析
- 45
- 5610
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
周立功的逻辑分析仪PCB照片
2021-5-4 23:30
- 电路赏析
- 66
- 16553
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
发几张加拿大的相机采集卡的照片
2014-6-3 13:22
- 电路赏析
- 26
- 3159
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
500多M电子电路书籍分享
2024-5-19 20:37
- 电路赏析
- 544
- 89725
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
华北科技CPCI965主板的全套图纸,Candance的,很完美
2020-12-20 21:39
- 电路赏析
- 364
- 69801
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
介绍一种正向积分器(原理)
2021-5-4 23:37
- 电路赏析
- 97
- 45282
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
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利用N+1个I/O口实现N×N矩阵式键盘[电路好像有问题,很有趣]
2014-5-22 23:19
- 电路赏析
- 23
- 8527
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
发个USB2.0芯片资料
2015-7-27 17:44
- 电路赏析
- 21
- 2728
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
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