Technical Board Information; Power Supply Circuit; Overview Power Supply Circuit; Pfc (Power Factor Correction) - Barco RLM G5 Performer Service Manual

9. TECHNICAL BOARD INFORMATION

Overview
•

Power Supply Circuit

• Random Boards
9.1 Power Supply Circuit
9.1.1

Overview Power Supply Circuit

Block diagram
PFC Board
EMI
AC Input
Filter
Image 9-1
Block diagram Power Supply circuit
Overview
The power supply circuit consists of the Format, OEM, StandBy power board and a PFC board. As shown in the block diagram, the
system required voltage is converted from the Format, OEM, StandBy power board, and the output voltage DC380V of PFC board
is applied to the lamp power, and other power boards.
9.1.2

PFC (Power Factor Correction)

Block Diagram
PFC Board
EMI
AC Input
Filter
Image 9-2
Block diagram PFC
R5976766 RLM G5 22/04/2004
Rectifier
and
AC/DC
Boost up
converter
Rectifier
PFC Controller
Vdc Monitor
IC321
IC325/326
Regulator
IC20
2.5V
Format
Power 3.3V
Board
5V
StandBy
3.3V
Power
5V
Board
24V
-5V
OEM
3.3V
Power
5V
Board
15V
Lamp
Lamp 1
Power 1&2
Board
Lamp 2
Boost
converter
Driver Driver
IC322 IC323
18V from Standby
9. Technical Board Information
Power Supply to
PMP and
Input Backlane
380V DC Output
47