Keysight E3630A, Operating And Service Manual

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5 Service Information
52 Keysight E3630A Operating and Service Manual
17 Reduce the value of R
L
gradually while observing the output current indicated
by the DVM. The current should increase to a maximum of 2.75 A ±5%
(2.6125 A to 2.8875 A) before it begins to decrease.
18 Connect a short across R
L
and then recheck the current indicated by the DVM.
The short-circuit current of this output should be 1 A ±15% (0.85 A to 1.15 A).
Disconnect the test setup from the supply.
Figure 5-4 Output current, test set up
Load regulation (load effect)
Definition:
The immediate change, •E
OUT
, in the static value of DC output
voltage resulting from a change in load resistance from open circuit to the value
that yields maximum rated output current (or vice versa).
To check the load regulation:
1 Connect the test equipment across the output of the +20 V supply as shown in
Figure 5-5 . Operate the electronic load in constant current mode and set its
current to the full rated value of the +20 V supply. Input off the electronic load.