User`s guide

Hardware Design
© 2008 Microchip Technology Inc. DS70320B-page 49
FIGURE 2-15: FLYBACK TRANSFORMER CONSTRUCTION
2.5.1.3 OUTPUT CAPACITORS
The capacitors selected for outputs are 100 μF, 25V and 470 μF, 10V, for gate drive
voltage rails and the dsPIC DSC device voltage rails, respectively. The ripple current
rating for United Chemi-Con electrolytic capacitors are 0.34 Arms and 0.64 Arms,
respectively.
3 layers 0.05 mm Melinex
3 layers 0.05 mm Melinex
3 layers 0.05 mm Melinex
3 layers 0.05 mm Melinex
8 turns of 0.4 mm 6 turns of 0.4 mm
6 turns of 0.5 mm5 turns of 0.5 mm
55 turns of 0.16 mm