Obviously you guys are veterans ;)
On Tuesday, October 27, 2020 at 10:07:47 AM UTC-7 gregebert wrote: > Inductance is one of those things where you have a hard time dealing with > it when you dont want it, and when you *do* want it, it doesn't always work > as expected due to saturation and other losses. > On top of that, it's difficult to model all of the aspects of coupled > inductors (transformers) in SPICE simulations, so you always end up doing a > lot of bench work getting these things to work correctly. > > Every project I've worked on using inductors in power applications works > great at low/zero load, and gets challenging trying to get it up to full > load. > > On Tuesday, October 27, 2020 at 7:20:24 AM UTC-7 Robert G. Schaffrath > wrote: > >> I always found inductors to be the bane of electronics projects. >> Resistors, capacitors and other discrete components were always readily >> available in standard values but inductors were that odd item that you >> often wound up having wind yourself on a core that itself was difficult to >> obtain. Something along the lines of "wind 10 turns of #18 Teflon coated >> wire on an Acme T128 core, spacing the turns 2mm apart" or something just >> as annoying. >> >> Back in the early 1980's my Electrical Engineering class took a field >> trip to the Ferroxcube plant in Saugerties, NY to see how inductors were >> made. It was fascinating to watch and they were of course very >> pro-inductor. Their catalog had a wide variety of components. But they were >> definitely an item you could not easily buy in single quantities off the >> shelf from RadioShack or other vendors of that era. >> >> On Monday, October 26, 2020 at 7:20:39 PM UTC-4 gregebert wrote: >> >>> Theoretically, there's no reason why switched capacitors cant be used >>> instead of inductors for voltage multiplication. Charge-pumps were used on >>> a lot of IC's back in the 1980's before everything went to CMOS, notably >>> DRAMs, that operated from a single supply-voltage. Some of you may remember >>> the 4116 had three supply voltages, but the next-generation 4164 was >>> 5V-only. Those were exciting times when DRAMs went from 16Kx1 to >>> 64Kx1....... >>> >>> Boosting 12V to 200V for a nixie supply without an inductor is certainly >>> possible, but it's not very practical. >>> >>> On Monday, October 26, 2020 at 2:12:48 PM UTC-7 Dekatron42 wrote: >>> >>>> Soon you might not see them anymore: >>>> https://www.nature.com/articles/d41586-020-02721-7 , just kidding - it >>>> will require some more breakthroughs before they have a practical >>>> component, but it would be nice if they could get smaller...... >>>> >>>> /Martin >>>> >>>> On Monday, 26 October 2020 15:35:36 UTC+1, Paul Andrews wrote: >>>>> >>>>> Yep. Its all about the transformer, until it isn't. That's the hardest >>>>> part about rolling your own power supply. >>>>> >>>>> -- 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 view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/0a1a2460-52df-438c-92b4-a6824f785addn%40googlegroups.com.
