Hi, my name is Mario and I'm a Power Systems Engineering Student from Costa Rica University. I was searching in the web for any simple project to execute for an electronics course and I found your article on the PWM for DC motors. I would like to know a couple of details about it, such as the values of the external components and some theorical doubts. Specifically, I would like to know why the circuit uses the 10K resistance and the IRFZ46N?? I understand that it must be a N-channel MOSFET, but I must justify why I (in this case you) picked this component, and if there is any other suitable element that can be used instead of it. About the resistance, which is its function on the PWModulator. I would also like to know if there is any bibliographical resource that may help me create a Theorical and Conceptual Base, explaining the main concepts involved in PWM. Thanks for publishing the project and thanks in advance for any help given.<br>
<br><br><br>PD: sorry if my english wasn't very well. <br><br>Mario Marin Richmond<br>Universidad de Costa Rica.<br>