Citation
González Sánchez, Mª Carmen and Vasic, Miroslav and Alou Cervera, Pedro and García Suárez, Oscar and Oliver Ramírez, Jesús Angel and Cobos Márquez, José Antonio and Visairo Cruz, Horacio
(2010).
Power analog to digital converter for voltage scaling applications.
In: "25th Annual IEEE Applied Power Electronics Conference and Exposition (APEC)", 21/02/2010 - 25/02/2010, Palm Springs, California, EEUU. ISBN 978-1-4244-4782-4.
Abstract
In order to optimize energy efficiency, some applications require adapting supply voltage according to the work load requirements. For example, in high performance digital systems and in RF systems, voltage scaling and modulation techniques have been adopted in order to achieve a more efficient processing of the energy. These techniques are based in rapidly adjusting the system supply voltage level. In order to achieve this, a topology which is capable of achieving very fast changes of the output voltage is needed. In this paper a PWM multiphase topology whose phases are coupled by using transformers is proposed to be used in an envelope elimination and restoration (EER) technique. The proposed topology can achieve very fast changes between discrete voltage steps so it can be considered as a power analog to digital
