Smps Block Diagram - LG CM9750 Service Manual

2. SMPS BLOCK DIAGRAM

(R2A20112A)
Interleaved
AC Line
Filter Block
(Varistor,
X-Cap
Line Filter
Thermistor)
Relay
AC
Vcc
PFC IC
FET
Totem 20 A
pole 600 V
4 EA
CRM
Gate
Drive
Vcc
Half Bridge
LLC
Pulse
Resonant IC
Trans
(ICE1HS01G)
Gate
Drive
3-45
MAIN SMPS
IC
(STR-2A153D)
Flyback
PFC Out
(395 V)
+
On/Off
On/Off
Half
Bridge
LLC
TRANS
(AMP)
FET
13 A
600 V
4 EA
Half
Bridge
LLC
TRANS
(AMP)
3-46
MAIN
- 5 V
TRANS
5.6 VA
14 VA
12 V
On/Off
PFC
P-CTRL
On/Off
AMP
P-CTRL
GATE
Digital
+PVDD
Power
(58 V )
AMP
-PVDD
(-58 V )
OPAMP
u-com / BT
USB / MPEG
LED, VFD
Motor Drive
FAN/Mic/
Relay
F_L
F_R
SW_L
SW_R
2.2 CH 3000 W