DER-60
Adapter – TNY268
May 27, 2005
7.4 Transformer Build Diagram
Tape 3L
PIN5
L4 0.55mm * 3 * 1L 3Ts
Secondary
Triple Insulated wire
*PIN3
Tape 3L
NC
L3 0.45mm * 5 * 1L 3Ts
*PIN7
Primary
Tape 1L
Primary
PIN7
Tape 1L
L2 0.25mm * 1 * 2L 60Ts
Primary
*PIN10
Tape 1L
PIN9
Primary
L1 0.25mm * 2 * 1L 15Ts
*PIN8
B0BBIN
Figure 5 – Transformer Build Diagram
7.5 Transformer Construction
Primary Layer
Insulation
Start at Pin 8. Wind 15 turns of item [3] from right to left. Finish at Pin 9.
1Layer of tape [6] for insulation
Start at Pin 10. Wind 60 turns / 2Layers of item [3]. Wind 1’st layer from left to
right; and add 1 layer of tape [6] for insulation; and then wind 2’nd layer from
right to left. Finish at Pin 7.
Primary Layer
Insulation
1Layer of tape [6] for insulation
Primary Layer
Insulation
Start at Pin 7. Wind 5–filar 3 turns of item [4] from right to left. Finish at NC.
3Layers of tape [6] for insulation.
Secondary Winding Start at Pin 3 Wind tri-filar 3 turns of item [5] from left to right. Finish at Pin 5.
Insulation
3Layers of tape [6 for insulation.
Assemble and secure core halves. Put 3 Layers of item [7]. Impregnate
uniformly with dip varnish [8]and bake.
Final Assembly
Power Integrations
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www.powerint.com
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