modulation

Hello, I have some questions regarding my implementation of IR LED detection with a phototransistor. Idea The main idea of the circuit is to make a circuit with incorporating a phototransistor, which will create a 0-5V signal on its output whether it detect IR LED presence. IR LED will be...

Hello, I'm not sure that I'm doing the PAM diagram correctly in LABVIEW. What I did is that I multiplied a Sine signal with a Square Signal and just filtered the signal. Attached are the circuit and results. Please let me know if something is wrong or missing.

Hello, I would like your suggestion on my first design Differential signal modulator [simulation attached]. Before jumping into design let me highlight my objective. I am differentiating a control signal of 1MHz and then modulating it with carrier frequency 15MHz(not limited to this specific...