3 samples for AM - amplitude modulation

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01:01:25

The blue is added bias to positive.
The green is changed the load to an inductor. In this case, it is little bit difficult to choose its inductance. Because frequencies of the carrier and the signal are close.
Tne orange may be unusual for high frequency circuits. I tried it to get clear wave forms.
These samples are collecter modulation.

published 10 years ago

hurz

10 years ago

In principle not wrong, but take care with the base collector diode and watch the current in all 3 circuits.

FitFat

10 years ago

Thanks,hurz. As you say, values of these circuts may not be be realistic, and something required ordinally are not shown here. Because purpose of these circuts is to present what AM is, and show its wave forms. ...By the way, the way for modulation this like, usually, there are terms while the collector voltage is less than the base voltage. It must mean the current goes ftom base to collector.

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