Voq
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If you have any material (books, links, articles) on transistors i would appreciate that. I am looking for a way to get more general knowledge on subject. Thank you.
This discussion focuses on resources for learning about transistors, particularly Bipolar Junction Transistors (BJTs). Key points include the contrasting explanations of BJTs as current-controlled versus voltage-controlled devices, which are critical for understanding their operation. Recommended resources include the GE Transistor Manual (1964) and the RCA Transistor Manual (1967), both of which provide practical insights into transistor applications. Additionally, contributions from universities such as Berkeley, Stanford, and MIT are highlighted as reliable sources for deeper knowledge.
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Voq said:If you have any material (books, links, articles) on transistors i would appreciate that. I am looking for a way to get more general knowledge on subject. Thank you.
They are both correct? Current is dependent on a voltage, so there must always be a voltage for there to be a current.LvW said:Voq - if you want to gain more and deeper knowledge on "how a transistoir works", I think the following hint is very important:
Comparing different knowledge sources (books, articles, internet contributions) you will - surprisingly - notice that two different explanations still exist:
1.) BJT as a current-controlled device: The collector current Ic is a result of (and will be controlled by) the base current Ib
2.) BJT as a voltage-controlled device: The collector current Ic is a result of (and will be controlled by) the base-emitter voltage Vbe.
Apparently, only one answer (physical working principle) can be correct. In the past, this subject was already intensively discussed - also in this forum.
An answer to this question may be of less inportance as long as you are using only formulas and design strategies readily available for building transistor amplifiers.
However, if you want to know what`s really going on and if you want to discover new application areas it is of great importance to know if answer 1) or answer 2) gives the correct description.
In this context, I recommend all BJT-related contributions from the universities of Berkeley and Stanford as well as from the MIT.
(Don`t rely on some obscure and simplified online tutorials) .
For example, see here: http://web.eng.ucsd.edu/ece/courses/ECE65/Spring2014/FN-Notes/main/BJT.pdf