简介:纵观目前AGP显卡市场.低端由6200A和Radeon9550把持.而中端的RadeonX700AGP、9800Pro已经相当少见.常见的是NVIDIA的6800XT/LEAGP版本。此外NVIDIA接连推出针对高端AGP平台的6800GS和7800GS.性能都不错。从产品线上来说.NVIDIA的AGP产品线更加全面。由于ATi在RadeonX1000系列才加入了SM3.0的支持.而且基于架构和成本的原因并没有在AGP平台大力推广X1000系列.所以可以非常肯定的说.ATi之前在AGP市场没有一款产品能够支持SM3.0技术,情况有些尴尬.所以此次ATi推出了X1300AGP版本。
简介:近日,国内通用耗材的领航企业天威推出了新型环保兼容耗材R[R[HPQ2624A硒鼓.为HP1300/1150/1000激光打印机配备了“新鞍“。
简介:Inthispaper,ananalyticaltechniqueispresentedfortimedomainanalysis(transientandsteady-stateresponse)ofperturbedPWMpush-pullDC-DCconverterusinginterestingcorollaryonKharitonov'stheorem.ThemainadvantageoftheproposedanalysisisthateventhoughthetransferfunctionmodelofaPWMpush-pullDC-DCconverterisperturbed,thecompleteanalysishasbeendoneonalineartransferfunctionmodelofaPWMpush-pullDC-DCconverter.TheproposedanalysisisverifiedusingMATLABsimulation.Thisanalysiswillbeverymuchusefultopowerelectronicsengineers,sincethetechniqueisverysimpleandcomputationallyefficientandeasilyapplicableinpreciseapplicationssuchasaerospaceapplications.