modified 9 years ago

LAoE Figure 4N.7 Common-emitter amplifier

01:50:48

Adding a collector resistor to the current source turns it to a voltage amplifier.

One can regard the common-emitter amp as a  two-stage circuit. The first stage is a current source (with current controlled by Vin); this is a V-to-I block. The second is a resistor that converts the output current, and its variations, into a voltage: this is an I-to-V block.

published 9 years ago

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