LG CM8440 Series - Block Diagrams

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BLOCK DIAGRAMS
1. SMPS BLOCK DIAGRAM
Digital
Power
AMP
F_ L
F_R
SW_L
AC Line
Filter Block
(Varistor,
X-Cap
Line Filter
Thermistor )
Pulse
Trans
Half Bridge
LLC Resonant
IC
(ICE1HS01G)
FET
20A
600V
2EA
4.5V
39V
12V
5.6VA
+PVDD
(66V)
AC
FL(+/ -)
VKK
MAIN SMPS
IC
(STR-2A153)
Flyback
MAIN
TRANS
u-com / BT
USB / MPEG
Motor Drive
FAN/LED/ Mic
VFD
PFC
P- CTRL
-5V
-PVDD
(-66V)
GATE
Half
Bridge
LLC
TRANS
(AMP)
Gate
Drive
4.1CH 1900W
OPAMP
AMP
P- CTRL
Totem
pole
PFC IC
(R2A20112A)
Interleaved
DCM
FET
13A
600V
4EA
Gate
Drive
+
PFC Out
(380V)
م
+
م
م
م
م
On/Off
On/Off
م
Vcc
Vcc
On/Off
On/Off
R_ L
R_R