What is noise? “Noise” or “Interference” consists of unwanted electrical signals which superimposes on and masks the desired signal. Designing a control system is challenging enough, but designing a control system that has noise immunity adds a whole other dimension. Ideally, you want the noise-to-signal ratio to be as small as possible. Noise is always […]
Detection and shielding of noise in stepper motor systems Read More »
Liberty* MDrive Introduction: Sinking or Sourcing The terms sinking and sourcing are used in the Liberty MDrive I/O description to describe the configuration of the I/O point with regards to the current flow through the device when active. Sinking: Voltage “sinks” the current to ground. Sourcing: Voltage “sources” the current from a voltage “source.” Sinking
Motors have windings that are electrically just inductors, and with inductors comes resistance and inductance. Winding resistance and inductance result in an L/R time constant that resists the change in current. It requires five-time constants to reach nominal current. To effectively manipulate the di/dt or the rate of charge, the voltage applied is increased. When
