Sam Robinson is a senior applications engineer at Apex Microtechnology Corp., Tucson, Ariz. He holds a BSEE from the University of Alabama, Huntsville. Email address: srobinson@apexmicrotech.com Web site: www.apexmicrotech.com
3 results found for Sam Robinson, displaying items 1 - 3
August 17, 2006[Design View / Design Solution] Drive And Control Electronics Enhance The Brushless Motor's Advantages
As recently as two years ago, brushless motors were significantly more expensive than brush motors. However, advances in design and materials have triggered dramatic price drops in brushless motors. Today, the cost differential between these two motor technologies is only about 10%. Brushless motors with the same horsepower as brush motors are smaller and lighter. Because they lack this brush-commutator interface, brushless motors exhibit lower acoustic noise....
November 7, 2005[Design View / Design Solution] Drive Piezoelectric Actuators With Fast, High-Power Op Amps
In the last 15 years, high-speed piezo electric actuators have become less expensive to manufacture. Consequently, they find themselves as a favorite design choice for a growing number of applications. Piezoelectric actuators made their initial entry in medical devices, including surgical tools and ultrasonic testing in the late 1980s. It was for good reason. Piezoelectric actuators are the fastestresponding positioning element available with microsecond time constants....
Sam Robinson is a senior applications engineer at Apex Microtechnology Corp., Tucson, Ariz. He holds a BSEE from the University of Alabama, Huntsville.
