Page 30 · 6300 Series ComboSource User’s Manual
just above the highest voltage needed for the maximum set point you will be
using. This gives the unit a “hint” as to the required voltage, and may be enough
to eliminate the thermal trip error.
If your instrument still continues to thermally trip, you can add a series resistor
(to the laser or TEC, as appropriate) to remove some of the power from inside
the unit. Typically, a 30W 1Ω load resistor in series with the output is sufficient,
but higher resistances and or power handling may be needed, depending on
the voltage and current configuration of your ComboSource. Please feel free to
contact the factory for more information and support.
Below is a graph that illustrates the minimum voltage requirements for the TEC
section of all ComboSource controllers:
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