Delta Electronics S48SS Manuel d'utilisateur télécharger pdf (Page 6)

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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Delta Electronics S48SS Manuel d'utilisateur Page 6