#198: Basics of a Vbe Multiplier: what it is, how it works & where it is used

w2aew
w2aew
69.9 هزار بار بازدید - 10 سال پیش - The Vbe Multliplier circuit, also
The Vbe Multliplier circuit, also known as an Amplified Diode or Adjustable Diode, is a useful circuit that allows you to set a user desired voltage drop without using a series combination of diodes or zeners.  This video describes and demonstrates how this circuit works, and shows a few applications where it is used.  It is commonly used to set the bias on a low-impedance push-pull output stage of an amplifier. All transistors shows are typical general purpose devices like the 2N3904/2N3906. The scope is being used as a simple curve tracer in the first part of the video.  Here is a link to a video that shows this technique:
#197:Simple V-I curve tracer using an...
The notebook pages for this video can be downloaded here:
http://www.qsl.net/w2aew/youtube/vbem...
10 سال پیش در تاریخ 1393/12/28 منتشر شده است.
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