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Question for you electronic/circuit builders
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In accordance with industry accepted best practices we ask that users limit their copy / paste of copyrighted material to the relevant portions of the article you wish to discuss and no more than 50% of the source material, provide a link back to the original article and provide your original comments / criticism in your post with the article.
[quote:-Adam-:MV8zNDY4MjI3XzYxODc0NDU3X0I4QjU0QkQy] [quote:SpringLeak:MV8zNDY4MjI3XzYxODcyOTcxXzRFNTM0MEVB] [quote:SpringLeak:MV8zNDY4MjI3XzYxODcyOTU4XzVCOTlBQ0M=] There is always a way. But usually the way is too f-ing hard. Can you tell more about what you are trying to do? If you know the wave form that you want, can you just generate the waveform you want instead of trying to filter it? Is it true AC, or DC offset? Is one offset positive and the other offset negative? [/quote] Are you that funny looking kid with the life vest thats always hanging around that crazy old man? [/quote] lol NO There is a bit of DC bias among the two. One is about 2/3 the voltage range of the signal. Roughly 1 to 2.5v swing +/- Though, they over lap about a third of the voltage range. So a window comparator is feasible but it looses a good part of the signal. Hysteresis comparator acts goofy with the two sawtooth forms occurring back and forth. Maybe acting on the rapid voltage rise from the one and the rapid voltage decline from the other. I would then need a simple op amp circuit that would create a signal pending if the voltage either rises rapidly or drops rapidly. But reduces the signal if it is a gradual slide of voltage. It would need to go high or low from the reference if spikes low/high.....I don't know. I was hoping there is a trick or a known method of doing such. Back to the drawing board. [/quote]
Original Message
Is there any way to separate or filter out a sawtooth wave dependent upon which direction the saw tooth edge is?
ie, one part lead rises sharp and tapers for one signal and the other signal has a leading taper then a sharp drop in voltage.
I do not want to filter frequency, already have a passive low pass to cut high freq noise.
Just need to separate the two signals. (or omit one and then buffer, omit the other)
I am completely baffled on this one.
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