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Series AC motor speed controller
| John Rudd | 23/09/2017 17:51:09 |
| 1479 forum posts 1 photos | Posted by Otley on 23/09/2017 16:39:51:
OK, sorry - I misread your post. Not a worry, hope I didnt come across as brusque.... Let us know how you get on with your controller, always interested in other folk's designs... I used that circuit as a basis for replacement speed control in a couple of vintage Bridges drills ( that I was restoring) that originally used a thyristor....but had a minimum speed of around 1000rom, so some circuit fiddling was needed to get it 'right'..... |
| Ed Dinning 1 | 23/09/2017 21:11:55 |
| 39 forum posts | Hi Otley, a very simple speed reducer is made by connecting a diode (3A, 400v) in series with the drill. This gives a reduction of about 40%
Ed |
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All Forum Topics > Electronics in the Workshop > Series AC motor speed controller