|
Post by bojakobsen on Aug 25, 2017 2:36:51 GMT -5
Hi. Just to let you know, this was very success full. For using the Lake Shore 336 for controlling Peltier elements it would be a very useful if this was a "standard" feature.
Best regards Bo
|
|
|
Post by bojakobsen on May 2, 2017 7:29:55 GMT -5
Thank you very much for sharing this very use full information. I am sure this could be a very nice solution.
Best regards Bo
|
|
|
Post by bojakobsen on Apr 27, 2017 2:33:10 GMT -5
Hi, thanks for the fast reply.
We have developed an analogue high power OpAmp based Peltier driver for our project, as we would like to avoid puls-modulated operation. In order to keep the driver electronics simple it does not have a "programmable gain".
A voltage divider could be a quick fix, but we need something which can be software controlled, that is why I was investigating if this could be an option for the Lake Shore 336. I fully understand that customization is not something you do easily (However I would suggest to consider such an option if the software in the 336 at some point is updated).
Regards Bo
|
|
|
Post by bojakobsen on Apr 26, 2017 7:00:38 GMT -5
I am using the Lake Shore 336 for controlling a Peltier module based cryostat system. Using the analogue outputs (3 and 4) in bidirectional mode (+-10V) works nicely, in collaboration with a voltage controlled current source.
However, it would be very use full to be able to limit the maximum output from the default +-10 %.
Using Peltier elements is always a battle between ohmic Joule heating and the Peltier effect. In some of our use cases it would be advantageous to limit the maximal current to limit the Joule heating needed to be removed.
Would such a feature (which I guess could be added in the internal software) be a possibility?
Best Bo
|
|