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