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词汇 Early effect
分类 英语词汇 英语翻译词典
释义

Early effect

原声例句
科普小杂文

We begin to experience their effects early in life.

我们从年龄很小的时候就开始感受它们的影响。

中文百科

尔利效应

-图1:上:集电极-基极反向偏置较小时的NPN基区宽度(较宽);下:集电极-基极反向偏置较大时的NPN基区宽度(较窄)。画有阴影的区域为耗尽区。-
-图1:上:集电极-基极反向偏置较小时的NPN基区宽度(较宽);下:集电极-基极反向偏置较大时的NPN基区宽度(较窄)。画有阴影的区域为耗尽区。-
-图1:上:集电极-基极反向偏置较小时的NPN基区宽度(较宽);下:集电极-基极反向偏置较大时的NPN基区宽度(较窄)。画有阴影的区域为耗尽区。-

尔利效应英语:Early effect),又译厄尔利效应,也称基区宽度调制效应,是指当双极性晶体管(BJT)的集电极-射极电压VCE改变,基极-集电极耗尽宽度WB-C(耗尽区大小)也会跟着改变。此变化称为尔利效应,由詹姆斯·M·厄利(James M. Early)所发现。

英语百科

Early effect 尔利效应

Figure 1. Top: NPN base width for low collector–base reverse bias; Bottom: narrower NPN base width for large collector–base reverse bias. Hashed areas are depleted regions.
Figure 2. The Early voltage (VA)  as seen in the output-characteristic plot of a BJT.

The Early effect, named after its discoverer James M. Early, is the variation in the width of the base in a bipolar junction transistor (BJT) due to a variation in the applied base-to-collector voltage. A greater reverse bias across the collector–base junction, for example, increases the collector–base depletion width, decreasing the width of the charge carrier portion of the base.

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