目标是3KW ,设置的390VDC输出,轻载输出正常,超过300W后,输出变到392-393VDC这样,而且输入交流电流开始不稳定,调压器嗡嗡响。会是环路问题吗?跳了VAO引脚外围效果不明显。来这里求教TI支持,谢谢了
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目标是3KW ,设置的390VDC输出,轻载输出正常,超过300W后,输出变到392-393VDC这样,而且输入交流电流开始不稳定,调压器嗡嗡响。会是环路问题吗?跳了VAO引脚外围效果不明显。来这里求教TI支持,谢谢了