tag:blogger.com,1999:blog-23217409.post1091946995533275218..comments2024-03-15T15:10:58.249+10:30Comments on little-scale: 8 stage sinewave approximationSebastian Tomczakhttp://www.blogger.com/profile/12712567577323498804noreply@blogger.comBlogger6125tag:blogger.com,1999:blog-23217409.post-16121041509358547612007-07-18T12:51:00.000+09:302007-07-18T12:51:00.000+09:30gracias senor.gracias senor.Tristan Louth-Robinshttps://www.blogger.com/profile/01033105370184104436noreply@blogger.comtag:blogger.com,1999:blog-23217409.post-34097160432731856002007-07-18T10:18:00.000+09:302007-07-18T10:18:00.000+09:30tristan,i found a good primer by national semicond...tristan,<BR/>i found a good primer by national semiconductr: <BR/>http://www.national.com/ms/LB/LB-16.pdfSebastian Tomczakhttps://www.blogger.com/profile/12712567577323498804noreply@blogger.comtag:blogger.com,1999:blog-23217409.post-70529375746315684112007-07-18T10:04:00.000+09:302007-07-18T10:04:00.000+09:30Purity is the key. I know that Alvin Lucier had d...Purity is the key. I know that Alvin Lucier had dozens of sine wave oscillators built for him in the 1960's and 70's by his friend David Berhman, who knew a thing or two about homemade electronics. I have read that they were an absolute terror to build as the elimination of noise was of paramount importance - especially in the work of Lucier. And this was 30-40 years ago. I'm very keen to start building pure wave oscillators for research purposes soon. Perhaps I could ask Berhman how he did it, I don't have his email though I'm sure I could get it off Alvin. ;)Tristan Louth-Robinshttps://www.blogger.com/profile/01033105370184104436noreply@blogger.comtag:blogger.com,1999:blog-23217409.post-1179599342727938072007-07-17T22:50:00.000+09:302007-07-17T22:50:00.000+09:30Haha I more than wish Sine waves were easy. I supp...Haha I more than wish Sine waves were easy. I suppose the difficulty is the price to pay for such awesomeness.Mycorrhizahttps://www.blogger.com/profile/06613886171668203420noreply@blogger.comtag:blogger.com,1999:blog-23217409.post-43021355210715836352007-07-17T21:06:00.000+09:302007-07-17T21:06:00.000+09:30thanks, j. anything outside of the 4.5V to 5V with...thanks, j. <BR/><BR/>anything outside of the 4.5V to 5V with a 0V negative rail is outside of the question for this application. <BR/><BR/>also have to take into consideration more wide band noise - perhaps not an issues with a digital approach?<BR/><BR/>for this, the main thing is to get a wave whose output is less harmonically rich than a square wave. <BR/><BR/>man, i wish building sinewabes was easy, easy, easy.Sebastian Tomczakhttps://www.blogger.com/profile/12712567577323498804noreply@blogger.comtag:blogger.com,1999:blog-23217409.post-91738347642994761422007-07-17T18:09:00.000+09:302007-07-17T18:09:00.000+09:30Cool post man. I've been looking into creating sin...Cool post man. <BR/><BR/>I've been looking into creating sine waves for some time. I've come across some reasonably easy-looking schematics, with quite inexpensive parts. Most of the sine schematics I've found, however, need rails - either +15,0,-15 or +12,0,-12 volts. This isn't too much of an issue though - just an added pain. You can find basic examples of sine oscillators on a lot of op-amp datasheets.<BR/><BR/>I follow too many tangents, so havent yet actually <I>built</I> a sine gen... maybe when my office is clean again.Mycorrhizahttps://www.blogger.com/profile/06613886171668203420noreply@blogger.com