PWM 3-Phase Speed ControllerIncluded three-phase PWM speed controller allows you to switch modes according to different hardware environments and scenarios. Under all 3 modes Nova is able to stop operating when PWM signal is below 6%.P-Q curveThree-Phase Six-Pole Drive Motor- Greater output power and torque. Fully utilizes electrical energy. reducing energy loss.- Better starting performance. Capable of quick start-up and reaching rated speed. improving operational efficiency.- Less noise and vibration. Reduces mechanical friction and electromagnetic interference. decreasing noise and vibration.- Precise PWM closed-loop design. Designed with speed compensation function. unaffected by air resistance. enhancing heat dissipation efficiency.Metal Shaft- Enhances structural strength.- Improves reliability and durability.- Superior dynamic balance.Neodymium MagnetA strong neodymium magnet is placed at the bottom of the fan frame. perpendicular to the shaft. This magnetic structure effectivel