Yup, forgot about that one! You would find out rather quickly if the diode couldn't handle it too ;)
On Mon, Nov 2, 2020, 4:03 PM Paul Andrews <[email protected]> wrote: > And one more: If the output diode can handle >300V. > > On Monday, November 2, 2020 at 3:32:01 PM UTC-5, Kevin A. wrote: >> >> 300 volts is easily done with a transformer type setup that already >> accommodates 200. If the main switching mosfet can handle higher back emf, >> the primary to secondary isolation of the transformer is rated for >300, >> and the output capacitors can handle >300, then the feedback resistor >> network can be changed to increase the regulated high voltage output. >> >> If you need 300 volts for the gr10g, just run a higher value anode >> resistor for the in18s at 300 volts and it should be fine. >> >> On Mon, Nov 2, 2020, 1:48 PM Dekatron42 <[email protected]> wrote: >> >>> Ah, yes it is. >>> >>> The Tayloredge is a "Flyback Boost Converter" according to the datasheet >>> and I know that there is an extra add-on that you can use to get higher >>> voltages (it has been discussed here on the forum) - so it might be >>> possible to add it to these designs too. >>> >>> /Martin >>> >>> >>> On Monday, 2 November 2020 18:19:21 UTC+1, Paul Andrews wrote: >>>> >>>> Michael Moorees design is a boost converter, and I have successfully >>>> added a voltage multiplier to those. However I have not successfully added >>>> a voltage multiplier to the raw output of the secondary of a fly back >>>> converter. >>>> >>>> Sent from my iPad >>>> >>>> On Nov 2, 2020, at 9:23 AM, Dekatron42 <[email protected]> wrote: >>>> >>>> >>>> I've tried a lot of stuff/solutions but so far I haven't found a single >>>> power supply, that is sold, that produces these voltages directly, all need >>>> an external voltage doubler/tripler. With the kit from Michael Moorrees you >>>> can add a doubler/tripler very easy, look a bit further down on his webpage >>>> here: >>>> https://threeneurons.wordpress.com/nixie-power-supply/hv-supply-kit/ >>>> (an external solution, he also has a larger voltage multipler for use with >>>> for instance the IEE NIMOs) or with the Tayloredge PSUs you can do >>>> something similar but there is no pin available so you'll have to solder a >>>> wire to get to the pulse output: >>>> https://www.shop-tes.com/1554-hvps-horizontal-smt-high-voltage-low-noise/ >>>> . >>>> >>>> I could make a new PCB and add all components on it (even thought about >>>> making a cut-out that would fit for the original PSUs from Moorrees or >>>> Tayloredge and just add the other parts) but I'd really prefer a PSU that >>>> had it all on the same PCB. >>>> >>>> I have understood that it is a real challenge to make a PSU with these >>>> voltages unless they use a doubler/tripler design, but I still hope that >>>> someone is up to that challenge. There is a linear voltage regulator here: >>>> https://www.bartola.co.uk/valves/2012/10/20/600v-feedback-regulator-finished/ >>>> that I haven't had time to build and test yet, but it looks very good and >>>> you can follow the design on the blog. >>>> >>>> /Martin >>>> >>>> On Monday, 2 November 2020 13:45:55 UTC+1, Paul Andrews wrote: >>>>> >>>>> >>>>> Hi Martin. Have you tried a voltage multiplier with the raw output of >>>>> the secondary on a fly back converter? My experience has been that you >>>>> don’t get what you expect. I.e. if your smoothed DC output is 150V and you >>>>> add a voltage doubler to the raw output from the secondary, you will not >>>>> get a smoothed 300V DC. Someone on here explained why a while ago. Greg >>>>> maybe? >>>>> >>>>> I’m seriously interested to know what other people’s experience of >>>>> this is. >>>>> On Sunday, November 1, 2020 at 8:48:48 AM UTC-5 Dekatron42 wrote: >>>>> >>>>>> Yes, 300V is for the old GR10G to light up properly, they work better >>>>>> at 250V and above. >>>>>> >>>>>> Adding an external voltage doubler/tripler is a nice option to drive >>>>>> these GR10G and possibly also dekatrons. >>>>>> >>>>>> /Martin >>>>>> >>>>> -- >>>> You received this message because you are subscribed to a topic in the >>>> Google Groups "neonixie-l" group. >>>> To unsubscribe from this topic, visit >>>> https://groups.google.com/d/topic/neonixie-l/yPdx7qLjIx8/unsubscribe. >>>> To unsubscribe from this group and all its topics, send an email to >>>> [email protected]. >>>> To view this discussion on the web, visit >>>> https://groups.google.com/d/msgid/neonixie-l/b75817bd-a91c-4b6e-ad72-57596d377401o%40googlegroups.com >>>> <https://groups.google.com/d/msgid/neonixie-l/b75817bd-a91c-4b6e-ad72-57596d377401o%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/70487327-4217-44f1-9f15-2b810061a59eo%40googlegroups.com >>> <https://groups.google.com/d/msgid/neonixie-l/70487327-4217-44f1-9f15-2b810061a59eo%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/4bdde690-8038-4b65-8215-3c6c5df5a7edo%40googlegroups.com > <https://groups.google.com/d/msgid/neonixie-l/4bdde690-8038-4b65-8215-3c6c5df5a7edo%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. 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