File:Early effect (NPN).svg

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Original file ‎(SVG file, nominally 250 × 340 pixels, file size: 58 KB)

Summary

A diagram showing the <a href="https://en.wikipedia.org/wiki/Early_effect" class="extiw" title="en:Early effect">Early effect</a>, or base-width modulation, in an NPN BJT. When the collector voltage is raised relative to the base and emitter (i.e. the collector-base junction's reverse bias is increased), the depletion region (hashed area) at the collector-base junction widens and the effective width (Weff) of the base is reduced. This results in a higher collector (i.e. output) current.

Licensing

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File history

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Date/TimeThumbnailDimensionsUserComment
current18:18, 3 January 2017Thumbnail for version as of 18:18, 3 January 2017250 × 340 (58 KB)127.0.0.1 (talk)A diagram showing the <a href="https://en.wikipedia.org/wiki/Early_effect" class="extiw" title="en:Early effect">Early effect</a>, or base-width modulation, in an NPN BJT. When the collector voltage is raised relative to the base and emitter (i.e. the collector-base junction's reverse bias is increased), the depletion region (hashed area) at the collector-base junction widens and the effective width (<i>W</i><sub>eff</sub>) of the base is reduced. This results in a higher collector (i.e. output) current.
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