Thanks Ian, that's really helpful. On Saturday, 8 March 2025 at 08:33:06 UTC Ian Sparkes wrote:
> They work fine at 5V. Never had a problem with one at 5V. > > But attention: ESP uses 3V3 and you might need to use a lever shifter > (e.g. CD40109) to make it work. > > On Monday, 3 March 2025 at 20:39:00 UTC+1 newxito wrote: > >> I use the HV5622, which goes up to 220 V, I think there is also a PLCC >> version. The disadvantages are the price and that it should be operated >> with 12V according to spec. However, I never had any problems using the >> chip with 5V. >> JBro63 schrieb am Montag, 3. März 2025 um 19:02:56 UTC+1: >> >>> Hi all, >>> >>> Group noob here, about to start build on a few different types of >>> display using Nixie tubes and ESP32. >>> >>> Planning to use K155ID1 initially (as I have a bunch) with some IN-12 >>> and IN14 tubes but want to also try HV driver such as the 5812 or 5530 so >>> would welcome any comment on which is the best one to go for or an >>> alternative. I don't intend to multiplex. Any driver would need to be DIP >>> or PLCC. >>> >>> Have spent many hours looking at the schematics and designs of others, >>> I'm grasping the basics but one frustration and evident gap in my knowledge >>> is how to pick / calculate the correct component and its size or rating for >>> anything other than the most basic circuit. >>> >>> For example, with a 180v supply, calculating the anode resistor for a >>> tube based on the datasheet is straight forward enough as the maintaining >>> voltage and current are known. >>> >>> When looking at something like the HV5812, many seem to use a 60 or 70V >>> zener diode with a resistor to keep below the max for the chip but how do >>> you determine the current needed for the driver, diode and load to be able >>> to calculate the current limiting resistor? The diode datasheet is simple >>> enough but I'm lost with the sheet for the HV5812. >>> >>> Thanks. >>> >>> -- 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, visit https://groups.google.com/d/msgid/neonixie-l/3f2641ea-5606-4133-a789-38d07efa6493n%40googlegroups.com.
