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A digitally controlled amplifier with ripple cancellation

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2 Author(s)
D. K. Jackson ; Adept Technol., San Jose, CA, USA ; S. B. Leeb

This paper describes a large-signal linear, multirate digital controller for, among other possible servomechanical applications, charging electric vehicle batteries. This controller permits the power amplifier to track and deliver a desired current trajectory for a wide range of loads while providing a unity-power-factor interface to the electric utility. A computationally inexpensive technique for implementing output ripple cancellation is also described and demonstrated on a prototype converter.

Published in:

IEEE Transactions on Power Electronics  (Volume:18 ,  Issue: 1 )