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FAQs MAX5974A close loop gain test
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  • 使用AD936X Evaluation Software导出配置时,软件提示滤波器系数过多。

MAX5974A close loop gain test

MAX5974A不能测环路的情况是指MAX5974A电感绕组反馈方案情况,如果MAX5974A用的是光耦反馈还是可以测环路的,和MAX5974D一样方式测。
在用电感反馈时,MAX5974A采用的是采样保持电路进行反馈,简单的讲就是一个周期只采样一个点,把这个点的电压作为反馈信号进行pwm调制,那么当你用bode仪注入信号时,芯片不一定能看到这个扰动,故而无法测试。

 

Tags: MAX5974A KA-14775 MAX5974AATE+
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