When commutating based on the position feedback by sensors the BLDC motor starts with high current and accelerates as fast as it can until the BEMF limits its speed for a given supply voltage.

• 当使用传感器进行位置反馈来执行换相时，启动电流和启动时的加速度都会很大，直到反电动势抑制电源电压起到限制速度的作用。