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MC34063降压输出电流不足
2017-3-1 15:31
- 电源技术
- 5
- 1369
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![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
包地信号跨过不完整的地平面区域,还会有问题吗
2021-11-25 17:55
- EMC&可靠性设计
- 6
- 4971
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
求一个220V交流转5V的电路图
2017-3-25 21:00
- 电源技术
- 14
- 6228
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
DC电源IC求教
2016-10-25 14:25
- 电源技术
- 7
- 559
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
如果做个电流检测?能实时监控到电流大小,不分方向?
2016-12-30 16:25
- 电源技术
- 14
- 2453
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
mc34063降压输出电压不正确
2016-9-25 20:00
- 电源技术
- 9
- 3535
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
一个不稳定的问题,求教
2016-6-25 16:13
- EMC&可靠性设计
- 3
- 749
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
pads 手动布线双击完成后怎么还自动布线呢?
2016-3-27 17:55
- PCB技术
- 12
- 4711
![](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3.3v SO-8 封装LDO
2016-4-8 11:24
- 电源技术
- 9
- 973
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
请教如何防止错接入AC电源烧坏芯片?
2016-1-13 14:06
- 电源技术
- 4
- 1116
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
I2C信号线SCL过孔应该在走线上还是稍微拉出来再过孔
2016-1-5 08:35
- EDA 技术
- 5
- 1764
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
新手画板,FPGA板,请各位指正
2015-12-1 18:50
- PCB技术
- 5
- 1643
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
485主要有哪些应用?
2015-11-29 23:19
- 通信技术
- 3
- 919
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
PADS LAYOUT 铺铜只显示边框
2018-6-6 09:24
- PCB技术
- 4
- 6515
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
20Mil宽的线,用多大的过孔合适 ?
2015-8-11 22:47
- PCB技术
- 11
- 8135
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
刚画完的线,累成狗了
2015-8-9 20:01
- PCB技术
- 9
- 1009
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
第一次画板,求大神帮忙改正,,真心感谢
2015-8-8 17:45
- PCB技术
- 17
- 1320
![](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485光电隔离电路放在开关电源背面影响大吗
2015-9-10 16:38
- PCB技术
- 3
- 955
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
求解DFN8的封装怎么焊接啊
2015-7-28 16:48
- PCB技术
- 6
- 5588
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
科普伦EMC USB HOST 电路请教
2021-11-26 15:46
- EMC&可靠性设计
- 5
- 4621
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
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