RD8 查看數據表（PDF） - Power Integrations, Inc
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RD8 Datasheet PDF : 12 Pages
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RD8
MARGIN WOUND TRANSFORMER CONSTRUCTION
TAPE
9
6
4
TAPE
3
TAPE MARGINS
(2 PLACES)
SECONDARY
PRIMARY
WINDING INSTRUCTIONS
Primary
Start at Pin 3. Wind 174 turns of 34 AWG heavy nyleze
wire in four layers. Finish on Pin 4.
Reinforced Insulation
Apply 3 layers of tape (polyester film, 17.5 mm (0.689 in)
wide and 0.056 mm (2.2 mil) thick) for reinforced
insulation.
Safety Margin
Construct margins on each side of bobbin using 3 mm
wide tape on flange side of bobbin and 6 mm wide tape
on pin side of bobbin. Match height of secondary winding.
Secondary Winding
Start at Pin 6. Wind 14 turns of 26 AWG heavy nyleze wire
from left to right in a single layer. Finish on Pin 9.
Outer Insulation
Apply 3 layers of 17.5 mm tape for outer insulation.
Final Assembly
Assemble and secure core halves. Glue according to
Power Integrations instructions (see Power Integrations
website: www.powerint.com).
Figure 21. Construction details of transformer TRD8-1.
PI-2224-082498
11 C
3/99
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