• RE: ADuM4223

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  • ADuM4223 internal modulation/demodulation function

    Dear Sir

    When I use ADUM4223, a radiation problem occurs, causing other circuit abnormalities.

    So I want to know the internal circuit action and radiant energy data of ADUM4223.

    Here are a few questions I would like to ask

     

    1. Which functional will be…

  • ADuM4223驱动半桥的问题

    ADuM4223 两个驱动输出是有什么关系吗?看框图是有两个完全独立的电源和驱动,但是为什么在驱动半桥的时候,上臂需要有自举?独立电源存在没有自举应该也可以工作的呀?

  • RE: ADuM4223 Start Conditions

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  • RE: Interfacing ADuM4223 with IGBT

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  • RE: TUV EN60950-1/A2 Certificate for ADUM4223

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  • ADUM4223 半桥驱动 DE 功放电路

          参考UG-368的电路,在此基础上扩展而成DE功放。使用multisim仿真 ,各部分波形输出正常;

    然后制作电路,AD的原理图如下:

    但是最终实测波形并不理想:

    在+VH_IN 不加的情况下,ADUM输出正常

    在加上+VH_IN的时候,波形出现不正常的地方,尤其是下半桥:

    上半桥的输出波形可以接受:

    但是出现负压。

    测量+VH_IN=20V 的波形更是不能理解

    请教一下,出现该问题的原因是在哪里?

  • RE: How to solve output error issues in ADuM4223

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  • RE: How to solve noise related issues in ADuM4223

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  • ADuM4223的评估板是否可以用来驱动碳化硅mos管?

    Anonymous
    Anonymous

    各位大佬,小弟想问一下ADuM4223的评估板是否可以用来驱动碳化硅mos管,或者有没有驱动碳化硅mos管的评估板推荐?多谢。