The AC power is disconnected and the DC power is "injected ... fast and high resolution motion control, and special programming equipment is used to program the DSP chip. Variable speed drives are ...

Engineers achieve this speed control requirement by using what is called the variable frequency drive ... Next, an inverter circuit converts this DC back to AC, allowing engineers to make any phase on ...

[Raynerd] wanted a new spindle for his CNC machine and thought that a brushless DC motor would be a great ... A general RC Vehicle electronic speed control and a servo tester work in conjunction ...