Page 1
7 - 1 7 - 1
POWER BOARD
TABLE OF CONTENTS
Internal IC Diagram ........................................................................... 7-1
Circuit Diagram .................................................................................. 7-2
PCB Layout Top View ....................................................................... 7-3
PCB Layout Bottom View .................................................................. 7-4
+
-
VREF
REF
CATHODE
ANODE
INTERNAL IC DIAGRAM - AZ431
INTERNAL IC DIAGRAM - AZ7500BP
Oscillator
0.12V
5
6
CT
RT
4DTC
1IN +
1IN -
2IN +
2IN -
1
2
16
15
Error Amplifier 1
Error Amplifier 2
Dead-Time Control
Comparator
D
CK
3FEEDBACK
PWM
Comparator
Pulse-Steering
Flip-Flop
OUTPUT CTRL
13
Reference
Regulator
Q1
Q2
12
10
11
9
8C1
E1
C2
E2
VCC
REF
GND
14
70.7mA
+
+
+
+
Page 5
8 - 1 8 - 1
AMP BOARD
TABLE OF CONTENTS
Internal IC Diagram ........................................................................... 8-1
Circuit Diagram .................................................................................. 8-2
PCB Layout Top & Bottom View ........................................................ 8-3
INTERNAL IC DIAGRAM - TA5508APAG
INTERNAL IC DIAGRAM - TAS5352 2ADDV
System
Microcontroller
12C
TAS5518
VALID
Left-
Channel
Output
Right-
Channel
Output
RESET_AB
RESET_CD
SD
OT
W
SD
OTW
PWM_A
PWM_B
PWM_C
PWM_D
M1
M2
M3
Hardwire
Mode
Control
34.5V
System
Power
SupplyGND
GND
GNDD(12V)/VDD(12V)12V
PVDD
VAC
PVDDPowerSupplyDecoupling
GVDDVDDVREGPower SupplyDecoupling
HardwireDC Llmit
4 4 4
Input
H-Bridge 2
Input
H-Bridge 1
PV
DD
_A
¡BB
¡BC
¡BD
GN
D_
A¡B
B¡B
C¡B
D
GV
DD
_A
¡BB
¡BC
¡BD
GN
D
VD
D
VR
EG
AG
HD
OC
_A
DJ
OutputH-Bridge 2
Output
H-Bridge 1
2-Channel
H-Bridge
BTL Mode
BST_A
BST_B
OUT_A
OUT_B
OUT_C
OUT_D
BST_C
BST_D
Bootstrap
Capacitors
Bootstrap
Capacitors
2nd-Order L-C
Output Filter
for Each
Half-Bridge
2nd-Order L-C
Output Filter
for Each
Half-Bridge