Smps Block Diagram - LG CMS8450F/W Service Manual

2. SMPS BLOCK DIAGRAM

(R2A20112A)
AC Line
Filter Block
(Varistor,
X-Cap
Line Filter
Thermistor)
AC
+
PFC IC
FET
Totem 20 A
pole 600 V
Interleaved
4 EA
DCM
Gate
Drive
Half Bridge
LLC
Pulse
Resonant IC
Trans
(ICE1HS01G)
Gate
Drive
MAIN SMPS
IC
(STR-2A153D)
Flyback
Vcc
PFC Out
(380 V)
+
On/Off
On/Off
Vcc
Half
FET
Bridge
20 A
LLC
600 V
TRANS
4 EA
(AMP)
3-45 3-46
14 VA
MAIN
- 5 V
TRANS
5.6 VA
12 V
On/Off
PFC
P-CTRL
On/Off
AMP
P-CTRL
GATE
Digital
Power
+PVDD
(66 V)
AMP
-PVDD
(-66 V)
VFD
OPAMP
u-com / BT
USB / MPEG
Motor Dirve
FAN/LED/Mic
R_L
R_R
F_L
F_R
SW
4.1 CH 2500 W