modulate amplitude of 50kHz pulse
Since you said that you need to modulate the amplitude of a 50kHz pulse, I guess it's safe to assume that you mean Amplitude Modulation, right? This is no problem. But what frequency are you gonna modulate it with? Voice? Data? Music? Remeber, U can't modulate any carrier (i.e. 50kHz)
with the same frequency or higher. In fact, it should probably follow the Nyquest theorum, which is a bit less than half of the carrier frequency.
So as not to confuse you with that, don't worry bout all that jive right now.
Do you have any information about what kind of load you want to drive with this? If you can post this, I think I can come up with a way for you to be able to Amplitude Modulation yer 50kHz with no problem.
Cheerz,
Bob
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Please,
do you have any idea how to modulate a 50kHz pulse wave form using a 1 kHz triangle wave form? Can I use a 741 for that?