Output Characteristic - Delta Electronics Delphi S48SS Series Evaluation Manual

8.1.3 Input Current Module Off (S48SS only)
Test
1) Set the enable switch SW1 to the appropriate logic enable position to disable the
power supply (as defined in Section 7.1).
2) Adjust the input power supply to the desired operating point of interest while
monitoring DVM2.
3) Note the input current from DVM1.
4) This reading is the result of the Disable Input Current of the DC/DC converter.
The Disable Input current will be around 1 mA (please refer to the datasheet for the
detailed specification).

8.2 Output Characteristic

8.2.1 Line Regulation
Line Regulation is defined as the percentage change in output voltage caused by
varying the input voltage over the specified range (36 to 75 volts) while the output load
and temperature remain constant.
Test
1) Turn on the fan.
2) Set the enable switch SW1 to the appropriate logic enable position (S48SS only).
3) Set the output power to the desired operating point.
4) Adjust the input voltage across the converter's input range (36 to 75 volts) while
monitoring DVM3.
5) Note the maximum +/- deviation of the output voltage over the full range of the
input operating voltage.
8.2.2 Load Regulation
Load Regulation is defined as the percentage change in output voltage caused by
varying the output load current over the specified range (no load to full load) while the
input voltage and temperature remain constant.
Test
1) Turn on the fan.
2) Set the enable switch SW1 to the appropriate logic enable position (S48SS only).
3) Set the input voltage to the desired operating point.
4) Adjust the output load across the converter's operating load range (no load to full
load).
5) Note the maximum +/- deviation of the output voltage over the full range of the
operating load range.
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