AMETEK HPD Series Operation Manual - Manual (Page 35)

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Section 4. Operation
Operating Modes
Automatic
Mode
Crossover
The automatic crossover system allows the power supply to automatically switch
operating modes in response to changing load requirements. For example, if the load
current attempts to increase above the setting of the current adjust control, the unit
switches automatically from CV to CI mode. If you lower the load requirements, the
supply automatically returns to CV mode.
Constant
Power Loads
When powering constant power loads such as switch mode regulators, it is preferable
to run in constant voltage mode, with the current limit set to supply ample current.
Operating near the CV/CI transition point can cause operation to become unstable.
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