electronicsman
Full Member level 5
This is a small project to control a motor using 3 phase bridge circuit. My only question is let us say i have to switch one top leg and one lower leg based on hall sensor, let us say it is H1L3. This is the configuration i tried H1 is controlled based on PWM and the lower leg is configured as output and made permanently low. Let us say i give PWM with 100% duty then the complete voltage is applied to the motor. Am i correct on this? Suppose if i control the H leg with 50% duty then half the voltage will be applied. If my above two assumptions are correct. Then I have one more scenario let us say i control the H leg and L leg both with PWM then how the behavior will be? I mean to say H leg with 50% duty and the Low leg at 50% duty. What will be the voltage applied to the motor? Is it simple calculation or it has to be derived using some equation? Please advise.