trialspower2
100 W
- Joined
- Dec 31, 2016
- Messages
- 108
Should a BLDC controller have dead time between segments?
I know you can run without, as each phase does an off segment between going from high to low/ low to high.
I tried running with a micro second where everything was switched off on a segment change but this gave spikes as I expect it interrupts current flow.
So I can either run without or just have dead time on the high side keep the low side connected.i.e have a micro second between moving from one high side phase to the next as the segment changes.
I realise this is different to synchronous dead time, I have this dead time on each complimentary pair.
I know you can run without, as each phase does an off segment between going from high to low/ low to high.
I tried running with a micro second where everything was switched off on a segment change but this gave spikes as I expect it interrupts current flow.
So I can either run without or just have dead time on the high side keep the low side connected.i.e have a micro second between moving from one high side phase to the next as the segment changes.
I realise this is different to synchronous dead time, I have this dead time on each complimentary pair.