tag:blogger.com,1999:blog-8226950546477403054.post3658017782630940974..comments2018-11-14T07:45:07.176+05:30Comments on Homemade Circuits Projects: Astable Multivibrator Using NAND GatesSwagatamnoreply@blogger.comBlogger4125tag:blogger.com,1999:blog-8226950546477403054.post-18990206955866375322016-08-08T19:06:10.000+05:302016-08-08T19:06:10.000+05:30I am also curious. I can be on board with 2.2 bei...I am also curious. I can be on board with 2.2 being a constant shared by all manufacturers, but how was is determined?Rory Lairdhttps://www.blogger.com/profile/06939575805569100747noreply@blogger.comtag:blogger.com,1999:blog-8226950546477403054.post-52618248602711751222016-08-08T19:09:07.000+05:302016-08-08T19:09:07.000+05:30Hi Swagatam,is there any information available on ...Hi Swagatam,<br>is there any information available on this constant of 2.2? I can accept that it is universally applicable, but I really like to know the origin or see the proof of such constants for my own understanding of the math behind the circuit function.Rory Lairdhttps://www.blogger.com/profile/06939575805569100747noreply@blogger.comtag:blogger.com,1999:blog-8226950546477403054.post-91447282996035155152016-08-08T19:21:59.000+05:302016-08-08T19:21:59.000+05:30The mark time is given by the relationship: tH =1....The mark time is given by the relationship:<br><br> tH =1.1 RC<br><br>Similarly the space time is indicated by:<br><br> tL ยป1.1 RC<br><br>Hence the period can be expressed as:<br><br> T = tH + tL = 2.2 RC<br><br> <br><br>Finally the formula for RC oscillator frequency may be given as:<br><br>f = 1/T = 1/2.2 RC<br><br>Swagatamhttps://www.blogger.com/profile/13783312838408713408noreply@blogger.comtag:blogger.com,1999:blog-8226950546477403054.post-57850564425322415062016-08-08T19:28:58.000+05:302016-08-08T19:28:58.000+05:30Hi Rory, I have tried to explain it in the above c...Hi Rory, I have tried to explain it in the above comment, please refer to it.Swagatamhttps://www.blogger.com/profile/13783312838408713408noreply@blogger.com