[esot.eric] was trying to drive a motor and naturally thought of using pulse width modulation (PWM) to control the motor speed. However, he found that even with a large capacitor, his underpowered ...

There’s a great demonstration of the circuit braking a fast spinning motor in the video clip below the fold. It is possible to use this driver with PWM, but [JM] has some warnings about inbuilt ...

Understanding the Structure of Brushless DC Motors ...