[GreenKeys] Loop supply options

[Nick England]

Data sheet says minimum 15ma load required for regulation. Unclear what
would happen used with a loop that switches from 0 to 60ma.
Nick


On Mon, Sep 9, 2019 at 2:15 PM Ralph Mowery <rmowery28146 at earthlink.net>
wrote:

> That might be something to think about.   I am not sure how much power the
> device could handle (dissipate)  before getting too hot.  Many of the 3
> terminal regulators can only handle a few watts.  It probably would work if
> say a 1000 to 1500 ohm resistor was in series with it.
>
>
>
> I had not looked at them in a long time and then they were only rated for
> about  1 to 2 watts and under 40 volts.
>
>
>
> Thanks.
>
>
>
> Ralph ku4pt.
>
>
>
>
>
> *From:* greenkeys-bounces at mailman.qth.net [mailto:
> greenkeys-bounces at mailman.qth.net] *On Behalf Of *John Lawson
> *Sent:* Monday, September 09, 2019 1:02 PM
> *To:* greenkeys at mailman.qth.net
> *Subject:* Re: [GreenKeys] Loop supply options
>
>
>
> TL783 3-term regulator - 125V at 700 mA
>
> 2 bux at Digikey:
>
>
> https://www.digikey.com/product-detail/en/texas-instruments/TL783CKCSE3/296-20687-5-ND/1143652
>
>
>
> Cheerz
>
> John KB6SCO
>
> Carson City NV
>
>
>
>
>
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-- 
Nick England K4NYW
www.navy-radio.com
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