Circuit Operating Descriptions
Samsung Electronics
13-3
1) F/B terminal of ICISO1 determines output duty cyle.
2) C-E (Collector-Emitter) of ICISO1 and F/B potential of ICISO1 are same.
13-1-3 Internal Block Diagram (Internal Block Diagram of S.M.P.S. Circuit)
Smoothing
Circuit
Rectified Circuit
Line Filter
Power IN
(220V)
Noise
Removal
(SNUBBER)
PWM Control
Circuit
(ICE2BSO1)
Converter
Voltage
Detection
Circuit
33V Rectified
Smoothing Circuit
5V Rectified
Smoothing Circuit
12V Rectified
Smoothing Circuit
3.3V Rectified
Smoothing Circuit
5V Rectified
VoltageCircuit (x3)
12V Rectified
VoltageCircuit
O
U
T
P
U
T
(X3)
Fig. 13-4
Содержание DVD-HR753
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