DC motor variable speed control

[ronv]

Fun

Just can't confuse you with the facts U. The motor is a big inductor.

 

[CHELLIE]

do not use a phase control for a DC motor... you need over $100 in filtering to get it to work. oh it will work, for a while. it will pump out 120 hz noise and pit out the bearings too!

you are talking about a 16mH at 10A inductor and a 2200uF lytic capable of handling the ripple current to filter a phase drive for a 5A DC motor.

Dan

Thank you Dan for the reply I am Learning something new here everyday Take care and have fun, Chellie

 

[CHELLIE]

Interesting that the company that makes Gary's motor also makes a similat controller.

**broken link removed**

Good find Ronv

 

[Ubergeek63]

Just can't confuse you with the facts U. The motor is a big inductor.

not sure what you are referring to. the motor effectively has a big inductor in it, but it would appear to the control circuit as having a loss dependent on motor speed and load