[Open_electroporator] Culture Shock yardboard testing

[Nathan McCorkle]

Another possibly helpful link for schematics or theory discussion:
https://www.pes.ee.ethz.ch/uploads/tx_ethpublications/__TPS_Optimal_Design_of_a_3.5kV11kW_DC-DC_Converter_for_Charging_Capacitor_Banks_of_Power_Modulators_02.pdf

On Mon, Jun 27, 2016 at 12:58 AM, Nathan McCorkle <nmz787 at gmail.com> wrote:
> On Sun, Jun 26, 2016 at 7:21 PM, John Griessen <john at industromatic.com> wrote:
>> I did not get total satisfaction today.  An hour ago I was still trying to
>> use the lame micropython docs to flash
>> a non pyboard platform
>
> Hmm, is this a problem with the ST  Nucleo F401RE? Heh heh, I just
> ordered one of those. I am  thinking you probably would have been up
> and running if you'd had an Arduino around. You should get a few of
> those $3 dollar units, and maybe one of the $6-9 'mega' boards too.
> They are handy to have a stock of for random stuff. Easy to get up and
> running quickly with a few clicks. Not suggesting for a product, but
> definitely a handy pretty-much consumable tool that can definitely
> serve a useful purpose once in a while.
>
>> without the help of the forum users who are all quiet
>> on the weekends.  So I switched to
>> thinking about the transformer specifying and not ready with studies on that
>> either.  So I just sent my stuff to Mr Zhou,
>> who has said before, "We have many engineers who has experience in high
>> frequency transformer for many years.If you need our help.Pls feel free to
>> contact us."
>>
>> I sent him what you all have seen here plus a redone schematic that shows
>> the output clamp diodes, capacitors with values,
>> so their engineers can interpret the scope waveforms from fact instead of my
>> newbie interpretations/scientific-wild-assed-guesses.
>
> Hmm, are disposable cameras still being produced? I wonder if those
> transformers could be useful, or a microwave? It almost seems at this
> point like you're building a DC-DC converter, but not using a boost
> topology. I checked a few days ago and it seems car ignition coils are
> 100 turns ratio. I just googled 'diy high current pulse' and got this
> link which uses car ignition coils... way bigger than what we want and
> way higher duty-cycle for sure:
> http://www.rmcybernetics.com/projects/DIY_Devices/homemade_power_pulse_generator.htm
>
> Maybe it can help, or not...  maybe send that site an email if you can
> find an address?
>
> --
> -Nathan



-- 
-Nathan