Delta Electronics S48SS manual Equipment Required, Equipment Set-Up and Description

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3.0Equipment Required

3.1(1) 0 ~ 80 V @ 0 ~10 A Power Supply (Chroma 6230K-80 or Equivalent)

3.2(1) 4 Channel 150 MHz Oscilloscope, (1) 1× scope probe, (1) 10× scope probe (Yokogama DL 1540C or Equivalent)

3.3(1) 4 1/2 Digital Multimeter (DVM3) (HP34401A or Equivalent)

3.4(2) 3 1/2 Digital Multimeter (DVM1 and DVM2) (FLUKE 45 or Equivalent)

3.5(1) 300W Electronic or Resistive Load (Chroma 6304)

4.0Equipment Set-Up and Description

4.1Connect one wire from the “+” lead of the Power Supply (Item 3.1) to the “10A” of the DVM1 (Item 3.4). Then connect one wire from the “Common” of the DVM1 to the

“Vin +” pin of the Evaluation Board.

4.2Connect one wire from the “-” lead of the Power Supply to the “Vin -“ pin of the Evaluation Board. Note: Use 10 AWG wire or similar for all connections in sections 4.1 and 4.2. Use twisted pair to reduce noise coupling.

4.3Connect the plus “+” and minus “-“ connection wires from the multimeter (item 3.3) to the “SVin +” and “SVin -” Pin on the Evaluation Board. The multimeter is designated DVM2, above in Paragraph 3.0, Section 3.4.

4.4Connect the plus “+” and minus “-“ connection wires from the multimeter (item 3.3) to the “Sense +” and “Sense -” Pin on the Evaluation Board. The multimeter is designated DVM3, above in Paragraph 3.0, Section 3.3.

4.5Connect a BNC cable (length less than 20 inches) from BNC1 of the Evaluation Board to Channel 1 of the oscilloscope (item 3.2).

4.6Connect a BNC cable (length less than 20 inches) from BNC2 of the Evaluation Board to Channel 2 of the oscilloscope (item 3.2).

4.7Connect the Positive and Negative power leads of the Electronic load (assuring correct polarity), or a resistive load to the Evaluation Board output terminal pin (“Vout +” for positive power lead and “Vout -” for the negative power lead).

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Contents Relevant Documentation Delta Delphi Series 48Vin S48SR and S48SSPurpose Equipment Required Equipment Set-Up and DescriptionThermal of the Converter Output CharacteristicsDynamic Characteristics Tests PerformedInitial Set-Up Initial Power UpTest Set-Up Test Input Characteristic Input Voltage RangeTest and Evaluation No Load Input Current TestLine Regulation Output CharacteristicInput Current Module Off S48SS only Test Load RegulationOutput Voltage Deviation Dynamic CharacteristicsOutput Ripple Test -S48SS & S48SRSoft Start Turn-On Time Thermal Characteristics EfficiencyAppendix A- Evaluation Board Schematic Appendix B Evaluation Board Layout Top View Appendix C- Evaluation Board Layout Bottom View USA