how would be its block diagram?
i want to generate signal for modulation for RF switching
2007-06-02 03:04:12 · 6 answers · asked by Shahnil J 1 in Science & Mathematics ➔ Engineering
You can do PWM quite easily with a micro controller such as teh ATtiny25 by Atmel
2007-06-02 04:22:00 · answer #1 · answered by MarkG 7 · 0⤊ 0⤋
A 555 timer works well at moderate frequencies as a simple oscillator / pulse width modulator. Here is link to the datasheet with info on this. Hope this is helpful.
2007-06-03 00:40:01 · answer #2 · answered by scott p 6 · 0⤊ 0⤋
Use a simple one-shot multivibrator like a 555 or a 74121. Clock it with a pulse at a constant frequency and then vary the pulse width by varying the RC time constant of the circuit.
Doug
2007-06-02 10:09:31 · answer #3 · answered by doug_donaghue 7 · 1⤊ 0⤋
you can generate these signals with the help of microcontrollers like 8051 family. you would have to program them in C or assembly.
2007-06-03 18:10:14 · answer #4 · answered by Anonymous · 0⤊ 0⤋
You would have to vary capacitance or inductance to change the wave form and if you wanted to do this within a wave and get really fancy, it might have to be done with a carrier unless you found a way to manipulate the particles that move around electrons?
2007-06-02 10:10:37 · answer #5 · answered by Anonymous · 0⤊ 3⤋
x=y
2007-06-02 10:14:48 · answer #6 · answered by 17 1 · 0⤊ 3⤋