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困局 by julian2013

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· @julian2013 ·
$1.53
困局
![](https://images.ecency.com/DQmNR5dKbicwxF3jkC96aUdpuswurudvtJtPovzpWY4j7Eo/img_3516.jpg)


最近困住了,做一个设计,现在二合一平均功耗 10mA,如果把 Ec 放到隔离,应该可以减小功耗(可以断电),但是程序基本上有三分之一要重写。

但最大的问题是另外有很多信息需要断电保存,每秒都断电,每秒都要写 flash,几天 flash 就废了。加 eeprom 费事费时,功耗有所增加,怎么看都是死局。

我买了几种元件,到货后我做一个自己的隔离电源,看看有没有希望……

![](https://images.ecency.com/DQmVvWC1XxYR3xSbfUyeKkeJj8nj7QsoftXVChm7Nzj2He5/img_3543.jpg)


还有一种方法,改变 ph 线路,更加复杂一些,理论上间歇工作没问题,需要测一下。

打工人的命真苦啊!
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@marygong77777 ·
厉害,加油!
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