Hey there!
We intend to drive a specific BLDC sensorless motor using two different control algorithms . both algorithms are based on BEMF ZC detection.But hardware is different. to clarify, the first hardware detects zero crossing points using analog comparators and interrupts and the second one detects them using ADC (by comparing them to VBus/2)
here's the thing the maximum speed achieved by algorithm one differs from algorithm two's while the applied duty cycle is almost 100% for both algorithms. is it possible? We all know that the max speed is related to the applied voltage so I expected the max speed to be the same no matter which algorithm I used. any idea? thanks!
We intend to drive a specific BLDC sensorless motor using two different control algorithms . both algorithms are based on BEMF ZC detection.But hardware is different. to clarify, the first hardware detects zero crossing points using analog comparators and interrupts and the second one detects them using ADC (by comparing them to VBus/2)
here's the thing the maximum speed achieved by algorithm one differs from algorithm two's while the applied duty cycle is almost 100% for both algorithms. is it possible? We all know that the max speed is related to the applied voltage so I expected the max speed to be the same no matter which algorithm I used. any idea? thanks!