User`s guide

ManualsBrandsVivanco ManualsAdapterUNIVERSAL SWITCHMODE AC TO DC MAINS ADAPTERS WITH USB CHARGING FUNCTION

Board Layouts and Schematics

© 2008 Microchip Technology Inc. DS70320B-page 87

FIGURE A-13: PRIMARY SIDE FEEDBACK CIRCUITS SCHEMATIC

C31

1nF

R47

2.7K

C18

1nF

R78

1.3K

4K7

R147

C16

1nF

100R

R148