![[School of Physics - Optics Group]](its1.gif)
Temperature controller
PID controller: nothing too fancy here - just lots of LF356
OpAmps. The large grey capacitors are low-leakage polystyrene and
are a part of the integral and differential stage of the controller.
Power amplifier: Takes the output signal from the PID controller and
gives it some grunt to drive the peltier coolers. We use a 3A OpAmp,
which is bolted to a large heatsink (which unfortunately doesn't show up
in this photo because of the dark background). The 0.33R, 5W resistor
is to stabilise the feedback loop.
Created: 16 August 2000
Updated: 16 August 2000
Maintainer: Anton Barty, School of Physics, Email: a.barty@physics.unimelb.edu.au
Authorised by: Robert Scholten, School of Physics, Email: r.scholten at physics.unimelb.edu.au
This page, its contents and style, are the responsibility of the author
and do not represent the views, policies or opinions of The University
of Melbourne.