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A
PWM_AT
P W MB0
PWM_AB
P W MB1
PWM_BT
P W MB2
PWM_BB
P W MB3
PWM_CT
P W MB4
PWM_CB
P W MB5
4
SU3_V_S_DCB
A N 8
MOTOR PHASE A CURRENT SENSE
S U 3 _ P H A_IS
MOTOR PHASE C CURRENT SENSE
S U 3 _ P H C _ I S
MOTOR DRIVE BRAKE CONTROL
PB6
SU3_PFC_PWM
SU3_PFC_ZERO_CROSS
PHASE C ZERO CROSSING
S U 3_ZERO_X_B
PHASE B BACK EMF
SU3_BK_EMF_B
3
SU3_PFC_ZERO_CROSS
Secondary Serial_COM JUMPER
PB7
TC1
PFC_ENABLE JUMPER
2
SECONDARY UNI-3 OVER-VOLTAGE FAULT DETECTION
R 1 12
A N 8
16K
SECONDARY UNI-3
OVER-VOLTAGE SENSE
(SU3_V_S_DCB)
1
A
Figure A-8. SECONDARY UNI-3 AND OVER-VOLTAGE DETECTION
B
J 2
1
2
3
4
5
6
7
8
9
1 0
GND
1 1
1 2
GND
1 3
1 4
1 5
1 6
GNDA
GNDA
1 7
1 8
1 9
2 0
SU3_I_S_DCB
A N 9
2 1
2 2
2 3
2 4
S U 3 _ P H B_IS
2 5
2 6
A N 1 3
2 7
2 8
SU3_SERIAL_COMM
2 9
3 0
SU3_PFC_INHIBIT
3 1
3 2
S U 3_ZERO_X_A
3 3
3 4
3 5
3 6
S U 3 _ Z ERO_X_C
3 7
3 8
SU3_BK_EMF_A
3 9
4 0
S U 3 _BK_EMF_C
SECONDARY UNI-3 CONNECTOR
J G 11
SU3_PFC_PWM
PFC PWM JUMPER
1
2
TD0
TD3
PFC ZERO CROSSING JUMPER
3
4
SU3_SERIAL_COMM
5
6
SU3_PFC_INHIBIT
7
8
R 1 13
R 1 14
1M
+3.3V
C 6 6
16K
+5.0V
0.1uF
R 1 15
5.1K
U 1 6B
5
+
+ 5 .0V
7
F A ULTB0
6
-
LM393
R 1 16
10K
DSP PWM 1
FAULT SENSE B0
B
C
SECONDARY UNI-3
DC BUS CURRENT SENSE
MOTOR PHASE B CURRENT SENSE
MOTOR DRIVE TEMPERATURE SENSE
PHASE A ZERO CROSSING
PHASE B ZERO CROSSING
PHASE A BACK EMF
PHASE C BACK EMF
Title
SECONDARY UNI-3 AND OVER-VOLTAGE FAULT DETECTION
Document
Size
Number
B
Date:
Tuesday, October 24, 2000
C
D
E
DSP Standard Products Division
2100 East Elliot Road
Tempe, Arizona 85284
(480) 413-5090
63A10516S
Designer:
Sheet
DSPD Design
D
E
4
3
2
1
FAX: (480) 413-2510
Rev.
1.0
of
8
18
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