> My wristwatch uses a 'boost' approach to ionize the display above 180V for > 25msec, then throttles back between 140 to 160V after the display is stable. > The saved energy is significant. It's 3-1/2 digits, direct-drive, and uses > NPN current-regulators for each segment (24 total).
Is that done in software, or what? It just occurred to me that you could add a parasitic multiplier "starting circuit" similar to the ones used in helium-neon laser power supplies to do this automatically*. However, another multiplier segment just might produce enough voltage to endanger other components (depends on what the AC drive voltage is, and the margins on the other components). * such lasers generally run on 1700V or so, but can require upwards of 10kV to start > My bench prototype has been running for over 2 years now on the original > charge to the battery (3.7V Li-ion, 1050mA-hr). I dont display the time more > than a few times per week, but the fact it's still operating is amusing. BTW, > the battery was not new, either. It was used for a few years in my cellphone > so it's capacity is diminished. That is both amusing and cool. - John -- 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 neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/86409E7F-0FDD-4873-90D9-BE9902118D71%40mac.com. For more options, visit https://groups.google.com/d/optout.
