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Amplifier/Subwoofer
U1, U3, U100, U101, U102
OP-AMP QUAD, (TL074, LM324)
AMP #3
IN 4 -
IN 4 +
OUT 4
14
13
12
4
1
1
2
3
IN 1 -
IN 1 +
OUT 1
AMP #1
U5 - UC3842N PWM CONTROLLER
7
V cc
34V
5
GROUND
2.50V
R /C
T
T
4
OCS
ERROR
AMP
V
FB
2
1
COMP
3
CURRENT
SENSE
HPS1000 INTEGRATED CIRCUIT DIAGRAMS
AMP #4
V CC-
IN 3 +
IN 3 -
OUT 3
11
10
9
8
3
2
4
5
6
7
V CC+
IN 2 +
IN 2 -
OUT 2
AMP #2
UVLO
5V
S/R
REF
INTERNAL
VREF
GOOD
LOGIC
T
S
2R
R
1V
R
CURRENT
SENSE
COMPARATOR
U4 - MOC3012 FOTO
1
ANODE
CATHODE
2
N.C.
3
8
V
REF
5.0V
50mA
BIAS
7
V c
6
OUTPUT
5
POWER
GROUND
6
MAIN TERMINAL
TRIAC DRIVER
5
SUBSTRATE
DO NOT CONNECT
4
MAIN TERMINAL
1
COMP
V
2
FB
I
3
SENSE
4
R /C
T
T
HPS1000
V
8
REF
7
V cc
6
OUTPUT
5
GROUND
2 4
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