Re: [DIYbio] Re: DIY electroporator

On 02/20/2018 08:08 AM, nisha p wrote:
> is this group still active?am trying to make electroporator with mosfet as switching element and  high voltade dc power supply. I
> have kind of designed it .But  power electronics is not my forte .can someone help me with it??
> thankyou

there's this OSHW: https://github.com/kanzure/culture_shock
and this list to discuss it on:
https://cibolo.us/mailman/listinfo/open_electroporator

I need to keep a focus on moving the project along, but can give you ideas, some review.

For instance, if above you mean to switch the output of the (2 kV purchased) HVDC supply, that won't work.
No chip MOSFETs can take that kind of voltage. Voltage like that needs to be spread out over space,
since it is enough to break down surfaces of insulators and make conductive tracks -- it will even break down
air over short distances like .2mm.

If you are making one for a voltage like 300V, then yes there are MOSFETs available, but 300V will apply only
to very small gaps between electrodes to get the needed field strength.

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