查询词典 buck up

The paper reviews the phylogeny of the LCD, describes the recent development situation of LCD-TV and several authority investigation institution do its prospective forcast. The research of the switching power supply, future development t rend is given in the paper. Outlines of LCD-TV technology, introduce the sort of topological structure. The BUCK type converter topological structure and the systematical basictheory were put emphasis on; the PFC, the reasons of power factor simply and the core of L6562 were analyzed, emphatically on the application circuit of this core, and account the design parameter of the application circuit. The sort and control mode of PWM, the control core of UC3846 and OB2262 were explained, the application circuit of this core were specific analyzed, practice picture in the real circuit uses oscilloscope were educed and contrastive analysis in this research.

本文回顾了LCD的发展史，介绍了LCD-TV发展的近况和一些权威调查机构对其未来的预测；对开关电源的研究概况和它的发展趋势作了总结；总体介绍了LCD-TV电源的结构及工作原理、拓扑结构的分类，着重研究了BUCK型变换器的拓扑结构及工作原理；对PFC作了综述，研究了功率因数降低的原因，重点介绍了L6562芯片，对此芯片的应用电路作了具体分析，并对芯片外围的设计参数作了分析研究；研究了PWM的分类和控制模式，对控制芯片UC3846和OB2262分别进行了重点说明，详细研究了基于UC3846的PWM设计，用示波器对其实际电路进行了抓图，并对比分析实际波形。

That was the man, Buck divined, the next tormentor, and he hurled himself savagely against the bars.

巴克心想，这人就是下一个迫害他的人，于是便猛扑到栅栏上。

Buck was beset by three huskies, and in a trice his head and shoulders were ripped and slashed.

三只赫斯基狗包围了巴克，瞬息间便咬破了他的头和肩膀。

In order to control the AC with the chopping method, MOSFET is used to design a pair of two-way electronic switch and an AC Buck-Boost circuit is formed.

采用MOSFET构成一对双向导电型电力电子开关，对交流电进行斩波控制，形成交流Buck-Boost电路。

Mr Buck is working with the Ugandan apprentices to make sculptures of some of the clan symbols.

勃克先生和乌干达的学徒们一起制造雕塑，让雕刻上带有些部族的象征。

It was invested with the woe of unnumbered generations, this plaint by which Buck was so strangely stirred.

巴克奇怪地受到这种悲哀的触动。

The waiter comes over at the end of the night ... The skunk says 'Don't look at me, I haven't got a scent' The duck says 'Just put it on my bill' The cow says 'You'll have to ask one of the udders' The deer says 'I had a buck last week and I'm expecting a little doe soon' The giraffe says 'Well, I guess the high balls are on me then' The frog says,"I've got one greenback" The vampire bat is thinking,"Which one can I stick for the drink today?"

侍者过来在夜的结尾…臭鼬认为'不要看我，我没得到气味' 鸭子认为'请把它放在我的票据上' 母牛认为'您将必须要求其中一个乳房' 鹿认为'我上星期有一个大型装配架，并且我很快期待一只小的母鹿' 长颈鹿认为'很好，我猜测高球在我然后' 青蛙认为，"我有一张美钞"你今天能I棍子为饮料的吸血蝙蝠认为，"？"

B. C. Buck Mulligan gaily, and Haines gravely, gazed down on the viceregal equipage over the shoulders of eager guests, whose mass of forms darkened the chessboard whereon John Howard Parnell looked intently.

神色愉快的勃克。穆利根和表情严肃的海恩斯，隔着那些全神贯注的顾客们的肩膀，从都柏林面包公司的窗口定睛俯视着。

To the old buck 's chanting of waka in the wind?

还倾听吗？风中还有老友的和歌！

One dollar, a buck twenty if you wanta transfer.

块，如果要转车就要 1 块 20 分。

The quality of both red and white wine depends very much on the wine maker talent and on the quality of the grapes.

他的红酒和白酒的品质，根据酿造者的能力和葡萄的质量，各有差异。

No, I don't want to get drunk before my next match.

" "不，我不想让我的下一场比赛前喝醉了。