Just like the subject says, I am not sure when you would use one over the other for generating a DC voltage. I am working on a prop for next Christmas where a user turns a crank which would then ultimately drive a series of lights (I haven't decided how I want to handle that part yet).
I had thought that a dynamo was the way to go, but there was a similar prop at a children's museum I went to and supposidly they used a DC Permanent Magnet Motor, DC Speed Control (0 to 24/VDC Voltage Output,10 Max. Amps), and a prop controller: http://www.efx-tek.com/php/store/index.php?main_page=product_info&cPath=1&products_id=2
OK, the prop controller makes sense, it is probably what they are using to drive the different 12V LED bulbs they were using, but I don't see what they used a motor and motor controller vs a dynamo.
Any thoughts?
I had thought that a dynamo was the way to go, but there was a similar prop at a children's museum I went to and supposidly they used a DC Permanent Magnet Motor, DC Speed Control (0 to 24/VDC Voltage Output,10 Max. Amps), and a prop controller: http://www.efx-tek.com/php/store/index.php?main_page=product_info&cPath=1&products_id=2
OK, the prop controller makes sense, it is probably what they are using to drive the different 12V LED bulbs they were using, but I don't see what they used a motor and motor controller vs a dynamo.
Any thoughts?