Thank you very much for your prompt reply. I now understand the pulses needed for the charge pump. Makes sense as you didn't have one to tap into. You said Taylor has a tripler for his HVPS, I tried searching but have to yet to come acorss it. DO you have any links or literature so I ca skip the switching portion of the schematic and just go right to the tripler for ease of use with my dekatron.
Nice to know the selection of rectifiers that cna be used. With component prices so cheap these days, Shouldn't be much of a headache locating what you need. Thanks again for your tim! On Friday, November 15, 2013 11:11:17 AM UTC-7, threeneurons wrote: > > I released the nixie clock kit, long before Taylor made his own tripler. > If you look at the charge pump schematic, the tail end of it, is a tripler. > The 4093 stage, and the associated transistors, are there to create a high > voltage pulse train. If you can tap on the pulses generated, directly from > the switching supply, you don't need this additional circuitry. But with > most HV supplies, available at that time, only DC is brought out. > > A doubler. or tripler, will NOT work on DC. It needs a pulse train, or > some time varying signal, like household AC. > > One final note. The pulse train, on the clock kit's charge pump, is a > relatively high duty cycle (>30%), and a relatively low frequency (600 to > 1KHz). This means simple crappy low speed rectifiers, like the 1N4007 can > be used. Ultra fast rectifiers (ie UF4007, MUR160, ...) are not required. > > On Friday, November 15, 2013 9:36:01 AM UTC-8, Chris Stalin wrote: >> >> Hey fellas, >> >> Doing lots of lurking and reading, Ton of awesome info and intellect in >> here! >> >> With my IN8 nixie clock nearly done as well as some IN16 clocks complete >> I think its time to venture into dekatrons. >> I bought a matched pair of metal base OG4 dekatrons the other day, Wile >> they are on their way I wanted to ask a question regarding M-Mooreess >> charge pump. >> http://threeneurons.files.wordpress.com/2012/07/nixie6c_sch.gif >> >> I am using a horizontal taylor edge HVPS - BTW John and all his work is >> amazing, Not to mention unlimited support. >> With my resister set for 200V output .... Why does Michael use a charge >> pump with a 4093 and not just a regular voltage doubler or tripler? What >> are the advantages of pumping the voltage up using the charge pump as >> apposed to the regular doubler or tripler? >> >> I think I should read up a bit on them lol. >> >> Thanks every one. >> >> -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/6eb06688-ae7e-4613-98f7-4f149e562ae9%40googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
