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我用2676做的28伏输入,24伏2A输出,启动后输出电压只有12伏,为什么?
最大占空比应该有90%以上,不应该出现你说的问题,能否提供你的原理图看看?
测试控制环路是否正常,以及IC外围元器件的参数设置是否合理!