开关电源拓扑结构电流模式与电压模式的比较 中文版

Unitrode IC CorporaTIon has， since its incepTIon， 　　自其创立之初起，Unitrode IC公司就活跃于尖端控制电 　　been acTIve in the development of leadin-ed 　　been acTIve in the development of leading-edge 　　的开发领域，旨在实现电源技术的最新发展。多年以来， 　　control circuits to implement state-of-the-art procontrol circuits to implement state-of-the-art pro公司推出了许多新产品，以使设计师能够容易地运用 　　ressions in power suppltechnolo. Over th 　　gressions in power supply technology. Over the 　　拓扑结构中新颖的创新成果。由于这些新型拓扑结构 　　years many new products have been introduced t 　　years many new products have been introduced to 　　之此可拓结，因此 　　allow designers to readily apply new innovations i 　　allow designers to readily apply new innovations in 　　circuit topologies. Since each of these new topolocircuit topologies. Since each of these new topolo一 　　gies purports to offer improvements over that whic 　　gies purports to offer improvements over that which 　　“一”was previously available， it is reasonable to expec 　　was previously available， it is reasonable to expect 　　some confusion to be generated with the introducsome confusion to be generated with the introduc。 　　tion of the UCC3570 - a new voltage-mod 　　tion of the UCC3570 - a new voltage-mode 　　一controller introduced almost 10 years after we tol 　　controller introduced almost 10 years after we told 　　： 　　the world that current-mode was such a superio 　　the world that current-mode was such a superior 　　。， 　　approach. 　　approach. 　　The truth， however， is that there is no single topol选方案。 　　ogy which is optimum for all applications. Moreover 　　ogy which is optimum for all applications. Moreover， 　　voltage-mode control - if updated with modern cirvoltage-mode control - if updated with modern circuit and process developments - has much to offe 　　it and rocess develoments - has much to offsiners of toda’s hih-erformance sulies anitrode IC Cororation hassince its incetion 　　自其创立之初起，Unitrode IC公司就活跃于尖端控制电路 　　been active in the develoment of leadin-ede 　　een active in the develoment of leadin-ed的开发领域，旨在实现电源技术的最新发展。多年以来， 　　control circuits to imlement state-of-the-art rcontrocrcuts to mement state-o-te-art ro该公司推出了许多新产品，以使设计师能够容易地运用电 　　ressons n ower sutecnoo. ver t 　　ressons n ower suecnoo. ver e 　　路拓扑结构中新颖的创新成果。由于这些新型拓扑结构均 　　ears mannew roucs ave een nrouce 　　ears many new proucs ave een nrouceo 　　声称较之此前可用的拓扑结构有所改善，因此预计随着 　　aow esgners o reay appy new nnovaons n 　　ow esgners o reay appy new nnovaons 　　UCC3570的推出人们将产生某些困惑，这是合乎情理的。 　　crcuopooges. nce eacoese new opo. UCC3570 是一款新型电压模式控制器，它的推出距离我 　　们告知世界“电流模式是一种如此优越的方法”已经过去 　　， 　　了将近10年。 　　然而事实情况是：没有哪一种拓扑结构对于所有应用来说 　　都是最佳的。而且，如果电压模式控制凭借新式电路和工 　　艺进展得以更新，则将使当今的高性能电源设计师获益多 　　。 　　。 　　多，并成为电源设计师所关注的一种颇具竞争力的适用候 　　The truthhoweveris that there is no sinle toole r选方案。 　　ownitrode IC Corporation has， since its inception， 　　其创立之初起，Unitrode IC公司就活跃于尖端控制电 　　been active in the development of leading-edge 　　een active in the develoment of leadin-ede 　　开发领域，旨在实现电源技术的最新发展。多年以来， 　　control circuits to implement state-of-the-art proontrol circuits to implement state-of-the-art pro公司推出了许多新产品，以使设计师能够容易地运用电 　　gressions in power supply technology. Over the 　　ressions in power suppl technolo. Over the 　　拓扑结构中新颖的创新成果。由于这些新型拓扑结构均 　　years many new products have been introduced to 　　ears man new products have been introduced to 　　之此可因此 　　allow designers to readily apply new innovations in 　　llow desiners to readil appl new innovations in 　　circuit topologies. Since each of these new topoloircuit topoloies. Since each of these new topolo一 　　gies purports to offer improvements over that which 　　ies purports to offer improvements over that which 　　“一”was previously available， it is reasonable to expect 　　as previousl available， it is reasonable to expect 　　some confusion to be generated with the introducome confusion to be enerated with the introduc。 　　tion of the UCC3570 - a new voltage-mode 　　ion of the UCC3570 - a new voltae-mode 　　一controller introduced almost 10 years after we told 　　ontroller introduced almost 10 ears after we told 　　： 　　the world that current-mode was such a superior 　　he world approach. 　　。 　　，并成为电源设计师所关注的一种颇具竞争力的适用 　　The truth， however， is that there is no single topolhe truth， however， is that there is no sinle topol方案。 　　ogy which is optimum for all applications. Moreover， 　　which is optimum for all applications. Moreover， 　　voltage-mode control - if updated with modern ciroltae-mode control - if udated with modern circuit and process developments - has much to offer 　　i n r vlmn - h mh ffr 　　desiners of toda’s hih-erformance sulies and