On idle, using the voltage-feedback control makes PWM modulator output the pulse disjointedly with blocking-oscillation frequency lowered and the pulse width narrowed. Accordingly not only the no-load loss is less, but also the transformer is not easy to saturate.

  • 系统在空载时由于采用电压反馈控制使PWM调制器间断地输出脉冲,间歇振荡的频率低而脉冲宽度窄,不但空载损耗小,而且使变压器不易饱和;
  • 来源:互联网摘选更新时间:2025-01-20 18:01:46

  • 重点词汇
  • andconj. 和,与;而且;于是,然后;因此;
  • onprep. (覆盖、附着)在…上;由…支撑着;在(运输工具)上;在(某一天);就在…之后;关于(事或人);(身上)带着;为(某团体或组织)的一员;吃;(表示方向)在,向,对;在,接近(某地);根据;以…支付;通过;与…相比
  • notadv. (否定后面的词或短语,或作否定的回答)不;(构成动词be、do和have及情态动词can或must等的否定形式,常缩略为n't)没有;否,或许不;(拒绝或不允许)不
  • isvt.& vi. 是(be的三单形式);
  • frequencyn.频繁性;[数][物]频率,次数;频率分布;
  • pulse width脉冲宽度,脉冲持续时间;
  • theart.这个;指已提到或易领会到的人或事物;指独一无二的、正常的或不言而喻的人或事物;用以泛指;与形容词连用,指事物或统称的人;用于姓氏的复数形式前,指家庭或夫妇;(指特定用途的事物)足够,恰好;每,一;当前的,本,此;(重读,表示所指的为知名或重要的人或事物)
  • usingv.使用( use的现在分词 );利用;耗费;吸(毒);
  • lessadv. 较少地,较小地;
  • 相关例句
1、

And I was thinking about how disjointedly time seemed to flow in Forks, passing in a blur at times, with single images standing out more clearly than others.

我在想着,在福克斯度过的时光是那么的支离破碎,有时候时间过得飞快,模糊了记忆中的一切,只有几幅简单的画面凸显出来,比别的画面显得更清晰些。

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2、

` We're not married, not really married,' she said, and slowly, reluctantly, disjointedly it came out.

‘我们没有结婚,真的没有。’她慢慢地,不情愿地,不连贯地说着,渐渐没了声音。

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4、

Before entering the cavernous sinus, one part of the trochlear never courses the middle incisura space 1.9 ± 0.4mm medial to the free edge of the tentorium.

滑车神经在进入海绵窦外侧壁前有一段在天幕游离缘内,紧贴天幕行走,与天幕游离缘的距离为1.9±0.4mm。

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5、

Objective: To recognize CT appearances of the acute traumatic hernia of incisura tentorii.

目的:提高对急性外伤性小脑幕裂孔下疝CT改变的认识。

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6、

Conclusion: CT can offer the reliable evidence in diagnosis of acute hernia of incisura tentorii.

结论:CT为临床判断急性小脑幕裂孔下疝的形成程度提供可靠的影像学依据。

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7、

CT and Clinical Diagnosis of Acute Traumatic Hernia of Incisura Tentorii ( An Analysis of 40 Cases)

急性外伤性小脑幕裂孔下疝的CT诊断与临床(附40例分析)

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8、

Acute Hernia and Acute Exacerbation of Chronic Hernia of Tentorium Incisura

小脑幕切迹急性疝及慢性疝急性发作

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9、

Experimental Investigation on the Incipiency and the Shape of Supercavity for Slender Bodies with Different Headforms

头形对细长体超空泡生成与外形影响的实验研究

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10、

Discuss prevent and control when incipiency of cement concrete pavement by incise of contraction joint

从缩缝的切割谈水泥混凝土路面早期断裂的防止与处理

互联网摘选

11、

Genus of shrubs of southwestern United States and Mexico: brittlebush.

产于美国西南和墨西哥的一个灌木属;一种扁果菊属的荒漠植物。

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12、

This paper manages to analyze the question from the view of knowledge innovation, but the incapableness of new classical economics in explaining the innovation forces us to reject the analytic style of main current economics.

本文试图从知识创新的角度对这一问题进行分析,而新古典经济学在解释企业创新问题上的乏力迫使我们必须放弃主流经济学的分析范式。

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13、

Due to incapableness of private force, unfair economic status of subjects and the function of the government, the government should regulate the online game fictitious res trade.

政府应该对网络游戏虚拟物交易进行规制,这是由私力的不能、主体经济力失衡以及政府的职能所决定的。

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14、

This paper introduces the basic characteristics and physical and mechanical properties of the luminescent fiber, which can luminesce for more than 10 hours only if absorbing any visible light for 10 minutes. The yarn evenness and softness can meet the looping requirements in knitting process.

介绍了夜光纤维的基本特性和物理机械性能:夜光纤维只要吸收任何可见光10min,就能在黑暗中自行发光10h以上,同时其条干均匀度和柔软度符合针织物成圈要求。

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15、

Organic electroluminescence devices were prepared using the new compounds with no electron transporting layer. The capability of electroluminescence was researched and their threshold voltages were between 3-5 V. It can be concluded that these compounds have good electron transporting property while they luminesce.

用新合成的分子化合物制备了不加电子传输层的电子器件,研究了它们的电致发光性能,启亮电压为3&5伏,说明该化合物发光的同时具有很好的电子传输性能。

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16、

Based on the layer-optimized method, the devices of sandwiched structure are produced by compounding MEH-PPV and SiO 2 In three different voltage regions of alternating current, the devices luminesce differently.

在分层优化基础上,用MEH PPV和SiO2复合制成夹层结构器件,在交流电压的三个区域下,表现出不同的发光。

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17、

With the improvement of luminesce intensity and efficiency of light-emitting diode ( LED), it applications gradually extend to the lighting and display area, and so on.

随着发光二极管(LED)发光强度和发光效率的提高,发光二极管(LED)应用领域逐渐扩展到照明和显示等应用领域。

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18、

This gene codes for a green florescent protein that, in nature, makes certain jellyfish luminesce.

事实上,这种基因是一种使得某些水母发冷光的绿色荧光蛋白。

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19、

Notably, these organometallic nanosheets luminesce in the red to near infrared region, and their electronic conductivity can be modulated by visible-light irradiation.

尤其是这些有机金属纳米片在红色到计划外区发光,而他们的电子电导率可以用可见光辐照来调整。

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20、

Taking advantage of the characteristics of heat luminesce of quartz to prospect for gold deposit and make evaluation

石英的热发光特征在金矿勘查与评价中的某些应用

互联网摘选

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