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A
4
PWM_AT
P W MA0
PWM_AB
P W MA1
PWM_BT
P W MA2
PWM_BB
P W MA3
PWM_CT
P W MA4
PWM_CB
P W MA5
+ 5 . 0 V _ U NI3
MOTOR BUS VOLTAGE SENSE
A N 0
MOTOR PHASE A CURRENT SENSE
U 3 _ P H A _IS
MOTOR PHASE C CURRENT SENSE
U 3 _ P H C _ I S
MOTOR DRIVE BRAKE CONTROL
PB5
PHASE B ZERO CROSSING
ZERO_X_B
PHASE B BACK EMF
BK_EMF_B
3
serial_COM
JUMPER
PFC_ENABLE
JUMPER
2
PRIMARY UNI-3 OVER-VOLTAGE FAULT DETECTION
R 1 07
A N 0
16K
UNI-3 OVER-VOLTAGE
SENSE
(U3_V_S_DCB)
1
A
Figure A-7. PRIMARY UNI-3 INTERFACE AND OVER-VOLTAGE FAULT DETECTION
B
J 1
1
2
3
4
5
6
7
8
9
1 0
GND
1 1
1 2
GND
1 3
1 4
+ 5 . 0 V _ U NI3
+3.3VA
1 5
1 6
GNDA
GNDA
1 7
1 8
U3_+15
U3_-15
1 9
2 0
U3_V_S_DCB
U3_I_S_DCB
2 1
2 2
A N 1
2 3
2 4
U 3 _ P H B _IS
A N 5
2 5
2 6
2 7
2 8
SERIAL_COMM
2 9
3 0
PFC_PWM
PFC_INHIBIT
3 1
3 2
PFC_ZERO_CROSS
3 3
3 4
ZERO_X_A
Z E RO_X_C
3 5
3 6
B K _ E M F_A
3 7
3 8
BK_EMF_C
3 9
4 0
PRIMARY UNI-3 CONNECTOR
J G 15
PFC_PWM
T D 1
PFC_PWM JUMPER
1
2
PFC_ZERO_CROSS
PFC_ZERO_CROSSING JUMPER
3
4
T D 2
SERIAL_COMM
RXD1
5
6
PFC_INHIBIT
TC0
7
8
R 1 08
R 1 0 9
1M
+ 3 .3V
16K
C 6 5
+ 5 .0V
0.1uF
R 1 10
5.1K
U 1 6 A
3
+
+5.0V
1
F A U LTA0
2
-
LM393
R 1 11
10K
DSP PWM 0
FAULT SENSE A0
B
C
UNI-3 +/- 15 VOLT ANALOG
A T T H E B R E A D B O A R D A R E A
MOTOR BUS CURRENT SENSE
U3_+15
MOTOR PHASE B CURRENT SENSE
MOTOR DRIVE TEMPERATURE SENSE
PHASE A ZERO CROSSING
PHASE C ZERO CROSSING
PHASE A BACK EMF
PHASE C BACK EMF
U 3 _ -15
Title
PRIMARY UNI-3 INTERFACE AND OVER-VOLTAGE FAULT DETECTION
Document
Size
Number
B
Date:
Tuesday, October 24, 2000
C
D
E
TP1
+15VA
TP2
-15VA
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
7
of
18
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