http://www.mysite.com Comments en Sun, 23 Nov 2014 11:17:31 +0000 Commentics 60 http://www.mysite.com/favicon.ico http://www.mysite.com 16 16 https://homediyelectronics.com/projects/simpletransistoramplifier/

This circuit could be called a "trial and error" circuit. The operation is very dependent on the gain of the transistor used. On the spec sheets the gain is often referred to as hfe or "beta". Most general purpose, small signal transistors have a gain somewhere between 50 and 180 and anything in this range should work ok.

The problem is that transistor gains vary a lot even between devices of the same type. This means that this circuit is difficult to precisely define from spec sheets alone and you may need to adjust component values on test.

If the collector voltage turns out to be too low on test then increase the value of R2 until the collector voltage sits roughly in between ground and the supply voltage.]]> Sun, 23 Nov 2014 11:17:31 +0000 41 https://homediyelectronics.com/projects/simpletransistoramplifier/ Could you also tell us how to calculate the resistance required according to our transistor?
Lets say I bought my own transistor from a nearby shop and I know the collector-emitter voltage, ..... all the specs of the transistor I have, how do I calculate the resistance that I need to use for the transistor?]]> Sun, 23 Nov 2014 08:37:33 +0000 40