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基于TOP267EG的反激开关电源一直重启,麻烦电源大神指导!
2015-12-15 21:02
- 电源技术
- 4
- 1683
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
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单向可控硅,感性负载,无法关断,不知何故
2017-6-19 14:30
- 电源技术
- 78
- 10354
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“农民工”牌 电磁炉
2018-8-11 20:01
- 电源技术
- 25
- 3064
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
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TL431怎么调整输出电压,调上下电阻输出电压无变化
2015-1-18 15:02
- 电源技术
- 20
- 9209
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
LED恒流电源 PWM调光
2015-4-23 23:02
- 电源技术
- 16
- 1666
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
求助4~20ma输入利用TL431输出5V的电路
2015-1-19 13:08
- 电源技术
- 5
- 1412
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
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如何实现灯亮度的控制?描述如下:
2015-3-7 09:40
- 电源技术
- 8
- 1459
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
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![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
奇怪??TL431的Vka=2v也能工作!
2014-12-20 00:34
- 电源技术
- 29
- 4657
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
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关于CD4013开关电路后级PMOS管的问题
2017-3-1 10:18
- 电源技术
- 47
- 8383
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
这种方式的供电有什么问题?
2014-10-25 16:17
- 电源技术
- 5
- 1180
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
【长贴】今天刚拆了个电动车控制器,三相无刷电机的
2019-1-5 09:23
- 电源技术
- 84
- 16514
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
9v转1.8v的电源电路不工作
2014-5-27 22:48
- 电源技术
- 17
- 1488
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
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![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
开关电源发出声音,如何解决
2011-10-31 22:57
- 电源技术
- 24
- 14365
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
220转3.3v 500ma, 无变压器. 体积最小, 高度15mm内.
2011-11-11 10:46
- 电源技术
- 7
- 2749
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
看下这个buck电路
2011-10-4 22:12
- 电源技术
- 15
- 2071
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
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