oscillator

erique82

New Member
i made an 2mhz lc oscillator, but it didnt give me a sinewave signal. how can i obtain a sinewave oscillating signal at 2mhz?
 
erique82 said:
i made an 2mhz lc oscillator, but it didnt give me a sinewave signal. how can i obtain a sinewave oscillating signal at 2mhz?
Click to expand...

Build it properly!, an LC oscillator should give a sinewave, it sounds like you may have far too much feedback? - try posting your circuit.
 
You will need to do as Nigel says. You did not mention voltage levels, etc. More details or upload what you have designed.
 
i didnt bring along my design now, but here's the rough overview.
 

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One thing that you have easily overlooked (that applies to basically every single circuit out there) is that the Load is the output
 
so, u meant the load is the output? that explains a lot. i didn't know that. i just copied the design from the net. the guy just connected the oscillator to the capacitor junctions. will check it out once i get back. and i will post the real picture later when i get online again.
 
i finally got 2mhz! thanx. it was a careless mistake. the output needs to be hooked to the inductor like in the picture. however, is there any way to make the signal center at the x-axis instead?
 
erique82 said:
i finally got 2mhz! thanx. it was a careless mistake. the output needs to be hooked to the inductor like in the picture. however, is there any way to make the signal center at the x-axis instead?
Click to expand...

As you haven't posted the circuit there's not much we can suggest?, and your question doesn't make much sense either?.
 
erique82 said:
the output needs to be hooked to the inductor like in the picture.
Click to expand...
Are you trying to make a transmitter?

Is there any way to make the signal center at the x-axis instead?
Click to expand...
the x-axis of what?

If you are talking about an oscilloscope, what you will most likely get on the screen is a bunch of waves with the same height.
 
Did you try making the circuit in Circuit Maker (or LT Spice I see a lot here, not sure if there is an educational version).

Then you see it on the computer, if you results are way off, check your wiring again. Just a thought. Gonna go see what LT Spice is.
 
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