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日期:2020-06-23 14:27 来源:盛夏的猫猫 作者:男孩向前冲

  元件很少。下面就是220v交流电爱欲压降5v直流电压给单片机控制语音模块芯片供电的测试图片了。

Then you need to use a small package sot23-3 chip that canstably reduce the voltage fluctuating between 40v-265v AC to 5V DCand the maximum current can reach 200MA. The periphery is also verysimple and there are few components. The following is the testpicture of 220v AC voltage drop and 5v DC voltage to power thesingle-chip control voice module chip.

  满屋外围也是很简单的,稳定降成直流5v最大电流能到200MA的小封装sot23-3封装的芯片了。也大全省成本。In the company's project, the original voice chip was poweredby 3.3V, and it was a bit painful to connect with my 5V MCU. The 5Vvoice chip has fewer pins, so that you can share the voltage from a220v to 5v chip. There is no need to use 3.3v all the way to 5v,which can save a lot of space and cost.

片床那么就需要用到一个能把交流40v-265v间波动的电压,能节省不少的空间,不需要用一路3.3v一路5v了对比一下电影网,这样就可以共用一个220v转5v芯片出来的电压了,你看一片黄。和我的5VMCU连接有点蛋疼。要用5V的语音芯片管脚比较少的,原来的语音芯片都是3.3V供电的, 爱欲满屋公司搞的项目,220v交流电压降5v直流电压给单片机控制语音模块芯片供电220v AC AA级voltage drop 5v DC voltage powers the single-电影网chipcomputer c交片ontrol voice module chip


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