Sharp LC-50LE751V - BLOCK DIAGRAMS

63
LC-39/50LE750
LC-39/50LE751
LC-39/50LE752
39”/ 50” POWER UNIT BLOCK DIAGRAM (RDENCA459WJQZ)
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
D D
C C
B B
A A
CONFIDENTIAL
FSP RDD3
APPROVED:
FSP139-4F01
Date: 2012/10/9
File:
D:\LAYOUT\Summer 09\FSP139-4F01-R3(SHARP 39-50)\BD-FSP139-
4F01-BLOCK.SchDoc
CHECKED:
PCB File: BD-FSP139-4F01-BLOCK
size: A3 rev:
0
DESIGNER:
P/N:
ᒵሁቹ ໢ᒳᇆ :7000P-0106
LJ
Chlu
Vivian
TITLE:
٤ዧٞᄐٝڶૻֆ׹
FSP GROUP
R
FSP Technology Inc.
PartNumber
Sheet of11
CIRCUIT BLOCK DIAGRAM
INPUT
A. EMI FILTER AND RAW B+ CIRCUIT
PFC
CONTTROL
CIRCUIT
POWER
TRANSFORMER
PWM
DRIVER
CIRCUIT
B. MAIN POWER STAGE
CONSTANT VOLTAGE
CIRCUIT
C. SECONDARY OUTPUT
D.OUTPUT CONTROL
E.FEED-BACK CIRCUIT
CLAMP
NETWORK
POWER
TRANSFORMER
PWM/SWITCH
DRIVER
CIRCUIT
OPTO-ISOLATOR
RECTIFER CIRCUIT
&
FILTER
CONSTANT VOLTAGE
CIRCUIT
5Vs
G. SECONDARY OUTPUT
I.OUTPUT CONTROLH.FEED-BACK CIRCUIT
OVP DETECT
OPTO-ISOLATOR
OPTO-ISOLATOR
OPTO-ISOLATOR
J.FEED-BACK CIRCUIT
ON/OFF
POWER
PFC
F. STAND BY POWER STAGE
AUX. POWER
RECTIFER & CIRCUIT
FILTER
18V
FUSE
EMI
FILTER
MAIN
RECTIFIER
AC
OVP
5.75V
AUX. POWER
18V
BUCK
D to D
12V
24V
D203