Is there anything wrong with using a transistor to control the amplitude of a square wave with voltage like in this circuit?
sim: http://tinyurl.com/y7xxzlzj
pic:
The square wave signal is just switching the transistor on and off, passing the voltage through, that's how it works. That being said, the circuit would only work for a square wave obviously. The sine wave is just modulating the amplitude, a dc voltage could also be used of course. Is there any reason this wouldn't work in real life?
sim: http://tinyurl.com/y7xxzlzj
pic:
The square wave signal is just switching the transistor on and off, passing the voltage through, that's how it works. That being said, the circuit would only work for a square wave obviously. The sine wave is just modulating the amplitude, a dc voltage could also be used of course. Is there any reason this wouldn't work in real life?