It uses the CMOS IC 7555 in the Astable mode to generate pulses to drive the servo motor. The circuit can be suitably modified to get pulses of sufficient length. A Servo is a small device that has an ...

Brushless DC motors are common place in RC Vehicles. They are small, light, fast and can be inexpensive. [Raynerd] wanted a new spindle for his CNC machine and thought that a brushless DC motor wou… ...

The reason why the servo pulse is about 1.5 ms long is because it was designed to be multiplexed by a simple “divide by N” circuit that passes each subsequent pulse to a different output.