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dc.contributor.authorGarcía Tormo, Albert
dc.contributor.authorPoveda López, Alberto
dc.contributor.authorAlarcón Cot, Eduardo José
dc.contributor.authorGuinjoan Gispert, Francisco
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica
dc.date.accessioned2012-01-24T11:47:37Z
dc.date.available2012-01-24T11:47:37Z
dc.date.created2010
dc.date.issued2010
dc.identifier.citationGarcia, A. [et al.]. Multi-level asynchronous Sigma Delta modulators for wideband switching power amplifiers. A: IEEE Workshop on Computers in Power Electronics. "2010 IEEE 12th Workshop on Control and Modeling for Power Electronics (COMPEL)". Boulder, Colorado: IEEE, 2010, p. 1-8.
dc.identifier.isbn978-1-4244-7462-2
dc.identifier.urihttp://hdl.handle.net/2117/14769
dc.description.abstractThis 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 multi-level Pulse Width Modulator, the most common modulator in multilevel switching power amplifiers. Behavioural model simulation results show that, unlike the multi-level PWM (which can only be used at high switching frequencies), the Asynchronous ΣΔ Modulators can also be used at average switching frequencies close to the signal bandwidth. At high switching frequencies, the performance of all the modulators is similar. The Asynchronous ΣΔ Modulators have further and more important advantages, such as high PSRR (even at the input signal frequency), the ability of handling non-regular distributed voltage levels, or a low ratio between the average switching frequency and the maximum instantaneous switching frequency.
dc.format.extent8 p.
dc.language.isoeng
dc.publisherIEEE
dc.subjectÀrees temàtiques de la UPC::Enginyeria electrònica::Electrònica de potència
dc.subject.lcshDC-AC converters
dc.subject.lcshPower amplifiers
dc.subject.lcshSigma-delta modulation
dc.titleMulti-level asynchronous Sigma Delta modulators for wideband switching power amplifiers
dc.typeConference report
dc.subject.lemacAmplificadors de potència
dc.subject.lemacConvertidors de corrent elèctric
dc.contributor.groupUniversitat Politècnica de Catalunya. EPIC - Energy Processing and Integrated Circuits
dc.identifier.doi10.1109/COMPEL.2010.5562381
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttp://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=5562381
dc.rights.accessRestricted access - publisher's policy
local.identifier.drac9431848
dc.description.versionPostprint (published version)
local.citation.authorGarcia, A.; Poveda, A.; Alarcón, E.; Guinjoan, F.
local.citation.contributorIEEE Workshop on Computers in Power Electronics
local.citation.pubplaceBoulder, Colorado
local.citation.publicationName2010 IEEE 12th Workshop on Control and Modeling for Power Electronics (COMPEL)
local.citation.startingPage1
local.citation.endingPage8


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