EPR-21 Datasheet, PDF (13/32 Pages) Power Integrations, Inc. – Engineering Prototype Report (EP-21) - 30 W DC-DC Converter with DPA424

19-Nov-02
8.3 Inductor Build Diagram
EPR-21 – 5 V, 30 W DC-DC Converter
Figure 7 – EP-21 Inductor Construction.
8.4 Inductor Construction
Winding #1
Basic Insulation
Winding #2
Outer Wrap
Final Assembly
Start at Pin 1. Wind 18 turns of item [4] in approximately 1 layer. Finish on Pin 2.
Use one layer of item [5] for basic insulation.
Start at Pins 7 and 8. Wind 7 bifilar turns of item [3]. Finish on Pins 5 and 6.
Wrap windings with 3 layers of tape item [5].
Assemble and secure core halves. Varnish impregnate item [6].
Page 13 of 32
Power Integrations, Inc.
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