RDK-128 Power Integrations, RDK-128 Datasheet - Page 14

• Manufacturer Part Number: RDK-128
• Description: KIT REF DESIGN 36-72W MOTOR DRVR
• Manufacturer: Power Integrations

Specifications of RDK-128

• Main Purpose: Power Management, Motor Control
• Embedded: No
• Utilized Ic / Part: PKS606
• Primary Attributes: Variable Speed 12V 36W DC Motor, 90 ~ 265 VAC
• Secondary Attributes: External Potentiometer or Variable DC Voltage Speed Control
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• Other names: 596-1198

RDR-128 36 W, 72 W Peak Variable Output Power Supply
7.5 Transformer Construction
Secondary Winding
Bobbin Preparation
2
1
Shield Winding
Core Assembly
nd
Bias Winding
st
Insulation
Insulation
Insulation
Insulation
Half Primary
Half Primary
Winding
Winding
Varnish
Power Integrations, Inc.
Tel: [phone] Fax: [phone]
www.powerint.com
Pin side of the bobbin is oriented to the left hand side.
clockwise when viewed from the non-pin side.
Start on pin 2, wind 19 bi-filar turns of item [3], Magnet Wire: #31 AWG, from left to
right with tight tension and bring the wire back across the bobbin and terminate the
winding on pin 3.
Apply 1 layer of item [6], 3M 1298 Polyester Film tape, for insulation.
Start on pin 5, wind 5 bi-filar turns of item [4], Magnet Wire: #29 AWG, from left to
right, spreading the windings evenly across the bobbin. Bring the wire back across
the bobbin and terminate the winding on pin 4.
Apply 2 layers of item [6], 3M 1298 Polyester Film tape, for insulation.
Start on pin 9 and 10 using 2 wires for each pin. Wind 4 quad-filar turns of item [5],
#23 AWG Triple Insulated Wire, from right to left. Continue winding the second
layer from right to left, spreading the turns evenly across the bobbin. Terminate the
winding on pins 7 and 8 using two wires for each pin.
Apply 2 layers of item [6], 3M 1298 Polyester Film tape, for insulation.
Start on pin 1 and wind 7 quad-filar turns of item [4], Magnet Wire: #29 AWG from
left to right with tight tension across the bobbin. Cut and finish the end.
Start on pin 3, wind 19 bi-filar turns of item [3], Magnet Wire: #31 AWG, from left to
right with tight tension and bring the wire back across the bobbin and terminate the
winding on pin 1.
Apply 3 layers of item [6], 3M 1298 Polyester Film tape, for insulation
Assemble and secure core halves.
Dip varnish assembled transformer with item [7], varnish.
Winding direction is
Page 14 of 32
16-Aug-07