NF BP4620, Instruction Manual

Page: 19 / 214

1.3 Principle of Operation
BP4620
1-4
1.3 Principle of Operation
Figure 1-1 shows a block diagram of the BP4620.
POWER
LINE
FLT
LINE
PFC
AC/DC
SUB
DCPS
MAIN
DCPS
+V
DD
-V
DD
for
POWER
AMP
for
each
BLOCK
isolation
CONTROL
PANEL
SYSTEM
CONTROL
CONTROL
USB
T
V I
EXT
MONITOR OUT
EXT SIGNAL IN
AMP
CONTROL
+
INT
RESPONSE CAL
PRO-
TECTOR
POWER
AMP
OUTPUT
Hi
Lo
INT OSC
(Sin,Squ,Arb)
Vo
Io
+V
DD
-V
DD
+ INT DC
①
②
③
④
L
N
Figure 1-1. Block Diagram