That’s because brushless DC motors require carefully timed signals used in a process called Electronic Speed Control (ESC). [Fileark] built and ESC using an Arduino and has a couple of posts ...

The circuit in this Idea for Design provides three levels of speed control for a dc motor using a PC’s parallel port (LPT1). A C++ program performs the control functions by allowing the signals ...

Recently, I found an interesting fan motor module in a web shop and grabbed a couple of them for nothing. At the heart of the module is an eight-pin L9110 DC motor control ... use a microcontroller ...

I was planning to use the opto-coupler speed sensor as part of a motor speed control – making the motor into the VCO ... applied voltage and back-emf is largely (entirely?) due to dc resistance in the ...

This time he’s using a motor controller that has four half H-bridges built into it. He hooks up the SN754410 to two motors, giving him speed and direction control for both based on the duty ...

The motor-speed-control circuit in the figure shows an SG3524 pulse ... A permanent-magnet (PM) dc motor produces a counter electromotive force (CEMF) at its terminals equal to the applied voltage ...