TNY266P_1 POWERINT [Power Integrations, Inc.], TNY266P_1 Datasheet - Page 12

• Manufacturer Part Number: TNY266P_1
• Description: 4.9W DVD power supply
• Manufacturer: POWERINT [Power Integrations, Inc.]

DER-10
8.6 Transformer Construction
Bobbin Set Up
Orientation
Margin Tape
W1 Bias Winding
Basic Insulation
W2 Two Layers
Primary Winding
Basic Insulation
W3 Copper Shield
Basic Insulation
Margin Tape
W4 3.3 V Winding.
W5 +5V Winding
Basic Insulation
W6 +12 Winding
Basic Insulation
W7 -23 V Winding
Outer Insulation
Core Assembly
Final Varnish
Power Integrations
Tel: [phone] Fax: [phone]
www.powerint.com
Set up the bobbin with its pin1 to pin7 oriented to the left hand side.
Apply 3.0 mm margin at each side of bobbin using item [7]. Match combined
height of primary, shield and bias windings.
Start at pin 8 temporarily. Wind 20 bifilar turns of item [3] from right to left.
Wind tightly and uniformly across entire width of bobbin. Finish at pin 6 using
item [8] at the finish lead. Flip the starting lead over to pin 7 using item [8] at
the finish lead.
Apply 1 layer of tape item [5]
Start on pin 3 using item [8] at the start leads. Wind 40 turns of item [3] from
left to right. Wind another 40 turns from right to left for second layer. Finish on
pin 1 using item [8] at the finish lead.
Apply 1 layers of tape item [5]
Start on pin 1 using item [8] at the start lead. Wind 1 turns of copper shield
shown in figure 5. Apply next step tape item[6] first before close this winding
to avoid copper shortage.
Apply 3 layer (including the tape covering the foil) of tape item [6]
Apply 3.0 mm margin at each side of bobbin using item [7]. Match combines
height of secondary windings.
Start at pin 11 using item [8] at the start leads. Wind 3 trifilar turns of item [3].
The wires should be tightly and uniformly wound spread across the bobbin
width. Finish on pin 12 using item [8] at the finish leads.
Start on pin 13 using item [8] at the start leads. Wind 1 trifilar turn of item [3].
Wind the wire spread across the bobbin width. Finish on pin 11 using item [8]
at the finish leads.
Apply one layer of tape item [5]
Start at pin 14 using item [8] at the start lead. Wind 5 turns of item [3]. Wind
uniformly spread across the bobbin. Finish at pin 13 using item [8] at the
finish lead.
Apply one layer of tape item [5]
Start at pin 12 using item [8] at the start leads Wind 17 turns of item [3]. Wind
from right to left in a uniform and tightly wound spread across the bobbin
width. Finish on pin 10 using item [8] at the finish lead.
3 Layers of tape [6] for insulation.
Assemble and secure core halves. Item [1]
Dip varnish uniformly in item [10]
4.9W DVD power supply using TNY266P
February 4, 2004
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