This feature is the "Small Cooling Fan" locked rotor, fan current moment into small (myopia zero A) lock, release the rotor, the rotor is stopped, a few seconds (the length of time to stop the state from "Small Cooling Fan"IC itself conventional design or special needs for design changes) can lead automatically released after the voltage by IC resume work inside the fan, the fan rotor began to start by stopping the normal operation of the state. This function is mainly to prevent the installation process "Small Cooling Fan" by reason of the rotor external factors cause the rotor is stuck or dead fan, often time is affected by a large current caused fans burned.