Samsung SCH-811 Service Manual page 96

10-2 Desk-Top rapid Charger Block Diagram
Line
Input
Filter
Controller
Rectifier Rectifier
& Flate & Flate
Snubber
Rectifier
& Flate
Switch
|
O.C.P
Feedback
O.V.P
Buck -
Converter
C-C
C-V
Filter
Control
Reference
Thermal protection
Over-voltage protection
LED-controller
charging control
C-C
Filter
C-V
Control
FET-S/W
u-com
|
FET-S/W
Front-out
4.2V/0.8A
LED
Display
Rear-out
4.2V/0.4A