Hi newxito, Ive been able to get the CJ51-43AL to produce high voltage, but only found that about 5ma @ 170 volts was feasible from a 5 volt input (using the LT-3757afe controller at a swithcing frequency of 100 KHz). Beyond that, the transformer would indeed go into saturation and get very hot.
If you intend to use the CJ51-43AL for more than 5ma of high voltage, then cranking up the input voltage is the only way. The part just isn't capable of more output, especially at lower input voltages where the primary current needs to be higher for any given power output. On Fri, Oct 2, 2020 at 6:33 PM newxito <[email protected]> wrote: > > 295/5000 > Great project! > Have you had any success building a power supply with the CJ5143? I > completely failed trying to build a 15x15mm PSU with this transformer. I > have got the 170V but only about 4mA and it wasn't really stable. But to be > honest, I haven't tried to improve it at all. > > Kevin A. schrieb am Freitag, 2. Oktober 2020 um 21:01:42 UTC+2: > >> Hi all, >> >> Just posted my first update with the initial hardware build, schematics, >> and more pictures here: >> >> >> https://neonkev.com/2020/10/02/la-piece-de-resistance-nixie-tube-smart-watch/ >> >> More to come! >> >> On Thursday, August 27, 2020 at 10:06:13 PM UTC-4 Kevin A. wrote: >> >>> Recently started up a longtime nixie project I've had in mind. Quite >>> ambitious (for me at least), and something that hasn't quite been done >>> before to my knowledge. This is a 4 tube, bluetooth enabled (nrf52832 mcu), >>> direct drive (not multiplexed) watch with burroughs b5755r nixies that I'm >>> currently getting out of my head and onto paper. It will include features >>> such as capacitive touch buttons, programmable accelerometer, automatic >>> light sensor, removable 14500 lithium battery, and smartphone app for all >>> sorts of display effects and options. No LED backlights on this one; its >>> all about the neon! >>> >>> It's nowhere near complete; the design currently exists in the digital >>> domain. I'm closing in on the first "complete" revision in the next few >>> weeks. Current dimensions are 59mm square by 28mm deep. Its quite large to >>> be hanging off of the wrist.. but are there really any rules when it comes >>> to a timepiece as unconventional? >>> >>> The software development will also be a tremendous task. Slow and steady >>> wins the race here! >>> >> -- > 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/347f78e7-70a5-4c44-ba1e-bd0716374c15n%40googlegroups.com > <https://groups.google.com/d/msgid/neonixie-l/347f78e7-70a5-4c44-ba1e-bd0716374c15n%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- 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/CALcVLKLSVqLgUYPQ-2a72LrCO7HsyZDT%2B%2BO5hsgKWzcfkJ%2BsRA%40mail.gmail.com.
