The most cost-effective method for driving a universal motor is to simply connect it to the AC mains or to the DC rail and let it spin. Because the speed of a universal motor depends in part upon the ...

Polytron Devices' new UI10 series of 10 Watt, single and dual output AC-DC power supply modules deliver 75% power supply efficiency in 2.5 in. x 1.75 in. x .75 in. fully encapsulated plastic cases ...