wp100
Advanced Member level 6
- Joined
- May 15, 2009
- Messages
- 3,051
- Helped
- 884
- Reputation
- 1,783
- Reaction score
- 733
- Trophy points
- 113
- Location
- Prime Meridian
- Activity points
- 0
Hi,
Have some small aquarium powerhead pumps using mains ac induction motors, typically just 5W.
They are often used in a 'wavemaking' mode switching on and off frequently.
There are commercial controllers that say they have Soft Start to help avoid the impellors being damaged.
While I have read about such soft start systems for large motors I do wonder if Soft start in this case actually exists ?
I know you can have a simple triac switch or the better way of zero crossing but is there another method I have not seen ?
Is it possible / practical to vary the cycles at start up with a micro ?
Have some small aquarium powerhead pumps using mains ac induction motors, typically just 5W.
They are often used in a 'wavemaking' mode switching on and off frequently.
There are commercial controllers that say they have Soft Start to help avoid the impellors being damaged.
While I have read about such soft start systems for large motors I do wonder if Soft start in this case actually exists ?
I know you can have a simple triac switch or the better way of zero crossing but is there another method I have not seen ?
Is it possible / practical to vary the cycles at start up with a micro ?