Reply to thread

Message: <blockquote data-quote="aidilj" data-source="post: 448287" data-attributes="member: 20536">That is some MOSFET you have there, very low ON resistance. Your calculation make sense and I understand how this could be problem if both FET over postive and negative are switched ON together. Even if the delay is small enough that it doesn't cause a short or smokey FET, the component can be stressed out and causes premature failure.I don't know if putting resistor at the gate would solve the problem by discharging the pin faster. For the turn ON delay maybe a capacitor? You probably have a better and more elegant solution.Jarance, you are correct. H-bridge circuit is mainly used to control and drive motor both ways, forward and reverse. By selectively switching two adjacent transistors, motor will move in one direction. You don't want to turn on transistor A and C or B and D at the same time, this is a short circuit. Some delay would be required when switching motor direction making sure no short circuit happens, the issue that Scott had but you know that already..</blockquote>