Browsing by Author "García Tormo, Albert"
Now showing items 1-7 of 7
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A grounded-output 5-switch bipolar buck-boost converter topology for switching power amplifiers
(IEEE, 2011)
Conference report
Restricted access - publisher's policyThis work presents a switching converter topology which can boost and step down the supply voltage and can deliver both positive and negative voltages to a grounded load (bipolar converter topology with non-floating output). ... -
A study on multi-level PWM and asynchronous Sigma Delta modulations for enhanced bandlimited signal tracking in switching power amplifiers
(2013-06)
Article
Restricted access - publisher's policyThis work deals with multi-level switching amplifiers, in the context of high-efficiency power amplification for signal tracking applications. In particular, this paper evaluates the reduction in the error signal's power ... -
An enhanced switching policy for buck-derived multi-level switching power amplifiers
(2010)
Conference report
Open AccessThis work proposes a switching policy for multi-level fullbridge switching power converters and analyses their performance by driving them with a multi-level PWM modulation, targeting highefficiency power amplifiers. ... -
Bandwidth extension techniques for high-efficiency power amplifiers
(Universitat Politècnica de Catalunya, 2011-04-15)
Doctoral thesis
Open AccessAquesta tesi tracta sobre amplificació de potència d'alt rendiment de senyals variables en el temps; concretament, tracta sobre conversió de potència eficient (amb mínimes pèrdues) de tensions DC continues en senyals de ... -
Continuous-time CMOS adaptive asynchronous sigma-delta modulator approximating low-fs low-inband-error on-chip wideband power amplifier
(IEEE, 2011)
Conference report
Restricted access - publisher's policyA mixed-signal continuous-time-processing standard CMOS implementation of an asynchronous sigma-delta modulator aimed to drive a switching amplifier operating as an on-chip wideband adaptive power supply is presented in ... -
Fundamental modulation limits for minimum switching frequency inband-error-free high-efficiency power amplifiers
(2011)
Article
Restricted access - publisher's policyThis paper explores the modulation bandwidth limits for switching amplifiers, by analyzing the fundamental tracking capabilities of two-level switching signals. With this aim, this work synthesizes two-level switching ... -
Multi-level asynchronous Sigma Delta modulators for wideband switching power amplifiers
(IEEE, 2010)
Conference report
Restricted access - publisher's policyThis work extends the Asynchronous ΣΔ Modulator and its Adaptive version to multi-level modulators, targeting wideband high-efficiency switching power amplifiers. The performance of these modulators is compared with the ...
