[time-nuts] HP5065A environmental sensitivities
Poul-Henning Kamp
phk at phk.freebsd.dk
Sun May 22 03:14:14 EDT 2016
--------
In message <57410D11.8050802 at rubidium.dyndns.org>, Magnus Danielson writes:
>> The C-field circuit in particular. (Yes, I'm still working on it, just not
>> very fast...)
>
>I was actually wondering how that was getting along.
Slowly, we're starting our house-building project now, so I've got a bit
more than usual on my plate.
>When I get the time, it would be fun to improve on things.
>
>Humidity, temperature, pressure, powergrid voltage...
The power-grid thing is solved for all I care, the Traco TEN60 DC/DC provides
a 24V rail stable to within a millivolt for EUR100
http://phk.freebsd.dk/hacks/HP5065A/20150930_dcdc/index.html
My plan is to design a new A18 containing:
* Traco TEN60
* Suitable -24 V DC/DC converter (to replace the one on A15
* Filtering
* "ideal-diode" input circuit to choose between AC and DC supplies
(Currently using: http://www.mini-box.com/Y-PWR-Hot-Swap-Load-Sharing-Controller)
Just need the time to do so...
--
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG | TCP/IP since RFC 956
FreeBSD committer | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.
More information about the time-nuts
mailing list