On that 12Vin PS, I can't see how R1 can be 130 ohms.  if you have 12V=20
on the left side of R1, then at 100mA, the R1 wants to drop more than 12V.
Perhaps it should be more like 80 ohms or less.

Cheers,
-Neil.



On 2/11/2018 8:03 PM, James Wages wrote:
> Sean,
>
> ...
> And here's a 12V vehicle PSU example, also showing expected current flow =
to the Load:
>
> https://d2ffutrenqvap3.cloudfront.net/items/123B2f3b1M1t122D2c2t/12Vin_PS=
U_12Vo_and_3Vo.pdf
>
> ...

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