
Electric motor has been widely used as motion control, and many type of motor controllers have been designed to provide variable speed drives for the motor. The best controller is the servo controller, where a precise speed control is implemented using a speed sensor in the feedback path. The circuit of the motor controller in [...]
Read the rest of this article [..]

Designing passive crossover network for your speaker system is easy, just like what shown in our previous crossover design article, but now we can design many types of crossover even easier using online crossover design tool. The crossover schematic diagram here is an example with a case of 10 kHz high corner frequency, 1250 Hz [...]
Read the rest of this article [..]