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麻烦推荐一款芯片,升压电路输出 36w左右,可以输出pwm信号从而可以控制风扇转速,输出功率越大风扇转速越高,达到最大转速

麻烦推荐一款芯片,升压电路输出 36w左右,可以输出pwm信号从而可以控制风扇转速,输出功率越大风扇转速越高,达到最大转速