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A5932 是三相无传感器 BLDC 风扇 MOSFET 门驱动器,它集成了正弦信号驱动功能,可以最大限度减小高功率风扇的可闻噪声和振动。
启动时,将正弦电压施加到电机绕组,以实现安静启动,并逐渐使电机达到要求的转速。
通过对 SPD 输入施加占空比指令来控制电机速度。速度输入可以在较宽的频率范围内工作。