
Undestanding BJT datasheet. | Electronics Forum (Circuits, Projects …
Nov 8, 2009 · Hey guys, I'm trying to understand the terms specified in a BJT's datasheet, and to link it with the what i was taught in university. - Base-emitter saturation voltage - VBE(sat). …
Questions about biasing an NPN transistor
May 29, 2014 · When Vbe=Vbe*1.01=802.61mV, thne Ic=2.19739mA. that is, when Vcc is doubled, Vbe increases by 1%, Ic decreases about 0.37%. So in a lower voltage, the same …
What voltage at the base emitter does a transistor conduct?
Apr 28, 2005 · In a common emitter amp with or without an emitter resistor providing negative feedback, the collector current is an expontential function of the Vbe. Vbe is the DC voltage …
BJT - a current-controlled device? | Electronics Forum (Circuits ...
Jun 10, 2013 · To all forum members who are convinced that the BJT is a current-controlled device. I am aware that the problem as mentioned in the title was discussed already earlier in …
Simple & Inexpensive Ideal-Diode MOSFET Circuits
Sep 19, 2017 · It adds a resistor and diode to protect transistor Q1a from excess Vbe reverse bias. It does add 10k of leakage in reverse bias, but that likely is not a problem for most …
What is causing mismatch in this current mirror?
Apr 2, 2011 · That parameter is Vbe for the two transistors. The circuit is driving the two be's with a low impedance source, and with only a tiny difference in Vbe you might see a large …
identifying the correct point of Ic (sat) | Electronics Forum (Circuits ...
Nov 18, 2009 · assuming that there is no external RE, is it correct to just obtain the impedance by finding delta Vbe/ delta Ib from the input graph I read that for this purpose, the value of Ib is …
Is Bipoler designed to withstand negative voltage and current?
Mar 4, 2012 · Unfortunately the reverse Vbe can happen so easily, just by mixing up the transistor base and emitter leads and connecting it to a circuit. Suddenly it sees more than 5v reverse …
For a PNP transistor, what are the signs of Ic, Ib, Ie, Vcb, Vbe and ...
Jan 16, 2011 · The collector of a PNP transistor is more negative than its emitter. But then the emitter is more positive than the collector, isn't it? PNP transistors are used in circuits that …
Simplest, least number of components, amplifier design.
Sep 13, 2021 · Here's a Hacker example (from a radio I still own), no extra drivers here - but a rather peculiar extra transistor at the front to give bass and treble controls - but still the basic …