I'd like to make a motor speed controller on an ex brush universal washing machine motor.
The motor runs for too fast so I'd like to reduce the revs down into the 10s. I've bought several motor controllers off Ebay/Amazon but the 240v version doesn't maintain the motor at low speed under load at constantrevs. The DC version I bought was good at low revs but I turned the unit on without turning the control potentiometer down first. This has blown something on the board and the fets/triacs aren't marked( Chinese) so I can't replace the obvious. I found this drawing on line and decided its better to make up my own. Trouble is I can't understand some of the notes on the drawing. Can someone talk me thro this?
EG. What are PAD 1,2,3,4,6&7 . Also theres no low voltage rail so everything seems to run off 240v- Is that right?
The motor runs for too fast so I'd like to reduce the revs down into the 10s. I've bought several motor controllers off Ebay/Amazon but the 240v version doesn't maintain the motor at low speed under load at constantrevs. The DC version I bought was good at low revs but I turned the unit on without turning the control potentiometer down first. This has blown something on the board and the fets/triacs aren't marked( Chinese) so I can't replace the obvious. I found this drawing on line and decided its better to make up my own. Trouble is I can't understand some of the notes on the drawing. Can someone talk me thro this?
EG. What are PAD 1,2,3,4,6&7 . Also theres no low voltage rail so everything seems to run off 240v- Is that right?
Comment