[Open_electroporator] Why a flyback pulser ?

[Nathan McCorkle]

On Tue, Nov 12, 2013 at 3:50 AM, John Griessen <john at industromatic.com> wrote:
> I don't like the stacked FETs for HV design.  No safety isolation of HV.
> Has a path through failed semiconductors and resistors.  They can fail
> shorted.

That could potentially be much worse than me spending the last 4-5
hours thinking drivers went to hell, when the problem was a bad solder
job that 10 seconds under a heat gun fixed. (on the atmega 8U2 the
arduino uses for programming). I guess the $0.67 attiny (in volume of
1) and whatever a few channels of opto-isolation cost is worth not
getting shocked. The opto-isolation is for sending i2c/spi/serial
voltage readings right?
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