Experimental Physics and
Industrial Control System

Mark Rivers <[email protected]> · Wed, 7 Nov 2018 13:11:49 +0000

Hi Nilson,

We have been very happy with the Sorensen XHR series:

https://www.powerandtest.com/products/dc-bench-power-supplies/xhr-series

We use them for EPICS temperature control using the EPID record, as you are proposing.

These are not digitally programmable, but are controlled by an analog input voltage.  We then use an EPICS D/A converter to control them, and an EPICS thermocouple reader as the PID input.

Recently we have been using the Measurement Computing devices for these.  Here is a photo of a a system consisting of black box with a Measurement Computing device packaged inside that does both thermocouple input and analog output.  The analog output is connected to the Sorensen power supply shown below it.  We are using a model with up to 33 V and 33 A (1000 W) which is well matched to heaters with 1 ohm resistance.  There is a model with maximum 7.5 V output and maximum 130 A, which would be a better match for lower resistance heaters.

[cid:75a8e7bf-3f0c-4b6b-9168-ec47ae64fa4f]

Mark

________________________________
From: [email protected] <[email protected]> on behalf of Nilson Pereira <[email protected]>
Sent: Wednesday, November 7, 2018 6:49 AM
To: Tech-talk
Subject: Current Source / Power supply suggestion

Dear All,

I am developing a temperature control solution based on peltier
elements. The PID loop will control the current on the peltier elements
based on the target temperature.

What I am really looking for are suggestions for remote control linear
DC Current source (0-5A, >300W) or Power supply with available EPICS
drivers.

Any information will be truly appreciated. (Bonus for being easily
available in europe)

Thank you.

Best regards,

Nilson Pereira

________________________________

Helmholtz-Zentrum Berlin für Materialien und Energie GmbH

Mitglied der Hermann von Helmholtz-Gemeinschaft Deutscher Forschungszentren e.V.

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Geschäftsführung: Prof. Dr. Bernd Rech (kommissarisch), Thomas Frederking

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Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System