Local Operation
3-4 TM-F2OP-C1XN-01
Constant Voltage Mode Operation
The power supply will operate in constant voltage mode whenever the
load current I
L is less than the current limit setting I
SET
, or: I
L
< I
SET
(Note: I
L
= V
SET
/ R
L
)
In constant voltage mode, the power supply maintains the output voltage
at the selected value (V
SET
) while the load current I
L
varies with the load
requirements.
Constant Current Mode Operation
The power supply will operate in constant current mode whenever the
load resistance is low enough that the load current I
L is equal to the
current limit setting I
SET
(Note: V
L
=I
SET
R
L
)
In constant current mode, the power supply maintains the output current
at the selected value (I
SET
) while the load voltage varies with the load
requirements.
Automatic Mode Crossover
This feature allows the power supply to automatically switch operating
modes in response to changing load requirements. If, for instance, the
power supply was operating in Constant Voltage Mode (I
L < I
SET
), and the
load changed so that the load current (I
L
) became equal to the current
limit setting (I
SET
), the power supply would automatically switch into
Constant Current Mode and the output voltage would vary in response to
changes in load current. If the additional load was subsequently removed
so that the load current was again less than the current limit setting, the
supply would automatically return to Constant Voltage Mode.
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