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Publications

Publications by Manuel Cândido Santos

2017

Performance improvement of a buck converter using Kalman filtering

Authors
Pereira, A; Duarte, C; Costa, P; Gora, W;

Publication
International Journal of Power Electronics

Abstract
This paper presents a predictive current control algorithm for a synchronous buck converter using an extended Kalman filter (EKF) algorithm. The predictive approach avoids the need of current-sensing circuitry and provides insensitivity to Gaussian noise sources at the output of the buck converter, which is the same as the control loop input. The method requires a model for the buck converter, the EKF design, and current loop tuning. All these prerequisites are described in this work along with the implementation of the algorithm in a state of the art microcontroller. Simulation and experimental results show that while maintaining a good step response, the proposed method provides better results than standard methods when Gaussian noise is present at the output voltage. © 2017 Inderscience Enterprises Ltd.

2017

Circuit Design -- Anticipate, Analyze, Exploit Variations

Authors
Stephan Weber; Candido Duarte;

Publication

Abstract

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