Re: [DIYbio] Electronic requirements for redesign of Arduino PCR thermal cycler

On Thu, Feb 26, 2015 at 6:48 AM, John Griessen <john@industromatic.com> wrote:
> On 02/26/2015 02:43 AM, Andy Morgan wrote:
>>
>> So, I'm guessing then that a 12VDC 500mA power supply (like the one they
>> specified in the original:
>>
>> http://www.jaycar.co.nz/productView.asp?ID=MP3011&form=CAT2&SUBCATID=1000#12)
>> will be fine then?
>
>
>
> For what?

Seems like it's the supply for the fan, switched by presumably a
MOSFET attached to pin-9 of the IC (arduino-software-pin 6) which is
labelled 'fan control pin' (this might be the net-name of the
circuit-net, depending on the CAD tool that was used by this
designer... where a net is a collection of pins that are all
'shorted'/connected together ).

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