© Jonathan Bartlett 2020
J. BartlettElectronics for Beginnershttps://doi.org/10.1007/978-1-4842-5979-5_25

25. Transistor Voltage Amplifiers

Jonathan Bartlett1 
Tulsa, OK, USA

In Chapter 24, we started our study of the BJT NPN transistor. We noted that what the transistor actually amplified was current, so that the current coming into the collector was a multiple (known as β) of the current coming into the base.

Even though what a transistor does is provide current amplification, in this chapter, we will learn how to transform that into voltage amplification.

25.1 Converting Current into Voltage with Ohm’s Law

If the transistor provides us with current amplification, how might we translate an amplification in the amount of current into an amplification ...

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