![Image](/./qsource/plugin/uhome/template/assets/img/user_home_headerbg.jpg)
各位大侠帮忙分析一下此电路能输出15伏吗?
2009-2-18 14:12
- 电子技术交流论坛
- 19
- 3116
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
动态数码管显示亮度不够问题。
2009-1-7 09:28
- 电子技术交流论坛
- 30
- 6194
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
请问反馈类型跟放大增益??
2009-1-7 00:18
- 电子技术交流论坛
- 3
- 1357
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
请教前辈,我的LCD屏怎么不显示,这样的程序可行吗?
2009-1-5 23:31
- 新手园地
- 6
- 1811
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
新手请教AT89S52
2009-1-5 23:10
- 新手园地
- 12
- 1508
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
请教555定时器的频率计算问题
2009-1-6 22:54
- 新手园地
- 8
- 6550
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
帮个忙~(负反馈分析)
2012-5-1 12:48
- 新手园地
- 5
- 1410
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
这两个三极管在电路中的作用是什么?
2009-4-6 09:59
- 电子技术交流论坛
- 8
- 2498
![](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
近期访客