Silent step protection is an additional module step and Pololu A4988 compatible step motor driver. The board provides the motor output with a flyback diode (free rotating diode), which enables it to withstand induction voltage even when the driver is not powered.
The v2 protector also contains a diode from the logical voltage (anode) to the motor voltage (cathode) to ensure the power supply sequence of all mute stepping bars.This type of eliminator is mainly used for the vibration of the 3D printer with parallel arm structure. Especially the motor with lower resistance is more effective. It can effectively eliminate the uneven signal wave at low speed and achieve a relatively flat signal. wave. Note: The effect varies depending on the machine and the condition of the motor.