用TPS92692升压调光,PWM频率7.2K,占空在5%的时候亮度就最亮,加大占空比亮度也上不去然后出现闪烁,请问是什么问题
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用TPS92692升压调光,PWM频率7.2K,占空在5%的时候亮度就最亮,加大占空比亮度也上不去然后出现闪烁,请问是什么问题