Block diagram – LG GSA-4167B User Manual
Page 67
Block Diagram
71
STM
M
S
W
ICHING
C
o
mmu
ta
ti
o
n
PW
M
CIRC
UIT
SPM
V/V c
onverter
+
-
CTL
SLIDE
2
V/V c
onverter
+
-
CT
L
+
-
CT
L
SL1+
SL1-
SL1IN
SL2+
SL2-
SL2IN
REF
SPIN
FG
U
V
W
FOIN
FO+
FO-
TRIN
TR+
TR-
VM2
SLIDE
1
V/V c
onverter
PW
M
CIRC
UIT
PW
M
CIRC
UIT
Current
sens
e
Current
sens
e
Current
sens
e
GND
GND
DSP
DSP
DSP
DSP
DSP
DSP
DSP
B
T
L
A
M
P
C
u
rr
e
n
t
c
h
o
p
p
e
r
P
W
M
C
u
rr
e
n
t
c
h
o
p
p
e
r
P
W
M
SPL
IM
DSP
5VCC
SLLIM
c
o
mm
utation
ST
ART
ER
CL
K
TLIN
TL+
TL-
ST
T
H
Cu
rr
en
t
g
ai
n
0.88 A
/V
B
T
L
A
M
P
B
T
L
A
M
P
OUT
PUT
Ro
n
1ohm
OUT
PUT
Ro
n
1.5ohm
OUT
PUT
Ro
n
1.5ohm
OUT
PUT
Ro
n
1.5ohm
OUT
PUT
Ro
n
1.8 oh
m
6.4
M
H
z
Fr
e
q
ue
nc
y
75KHz
Fr
e
q
ue
nc
y
75KHz
Fr
e
q
ue
nc
y
150KHz
Cu
rr
en
t
g
ai
n
0.88 A
/V
Cu
rr
en
t
g
ai
n
3A
/V
0.6
A
/V
OUT
PUT
Ro
n
1.8 oh
m
F
o
r /FO
/T
R
/T
ILT
VM1
GND
BA
CK
EMF
DETE
CT
ER
TS
D
S
IN
C
ur
re
nt
c
ho
p
pe
r
P
WM
Fo
r
SPI
ND
LE
Fo
r
S
L
ID
E
7-
13.
2V
7-
13.
2V
4.5-
5
.5V
FG(x3)
Rever
s
e
dete
c
t
Vo
lt
a
g
e
g
ai
n
x
12
Vo
lt
a
g
e
g
ai
n
x
12
Vo
lt
a
g
e
g
ai
n
x
12
LO+
LO-
VM3
DSP
M
OUT
PUT
Ro
n
1.5oh
m
GND
H B
ridge
+ -
EN
1
DS
P
EN
2
DS
P
Fo
r
L
OADI
NG
4.5-
5
.5V
7-
13.
2V
TE
S
T
SP
G
S
G
a
in Se
lec
t
(SPM)
ENAB
LE
COMMO
N
ACT
RS
T
ACTFLG
DSP
DSP
Pic
kup Pr
otect
T
EST
m
ode