+5V
R1
+VISO3
1kΩ
78L05
REF1004-1.2
Motorola
DSPS6004
C10
5µF
C1
C2
0.1µF
0.1µF
+
C11
0.1µF
GND3
WST
WSR
+5V
R2
200Ω
DOUT
SDI 0
to 3rd Motor
Leg Driver
CLK
C3
0.01µF
ADS7817
ISO130
CS/SHDN
R3
200Ω
System
GND
System
GND
+5V
GND3
R4
+VISO2
SCKR
1kΩ
SCK/SCL
78L05
REF1004-1.2
C12
5µF
C4
0.1µF
C5
0.1µF
+
C13
0.1µF
GND2
+5V
R5
200Ω
DOUT
CLK
CS/SHDN
SDI 1
to 2nd Motor
Leg Driver
C6
0.01µF
ADS7817
ISO130
R6
200Ω
First Motor
Leg Driver
System
GND
System
GND
HV+
+5V
(Several
Hundred
Volts)
from
PWM
• • •
GND2
+VISO1
R7
1kΩ
78L05
REF1004-1.2
C14
5µF
C7
C8
0.1µF
0.1µF
+
GND1
C15
0.1µF
+5V
R8
200Ω
CLK
SCKT
CS/SHDN
DOUT
C9
0.01µF
0.01µF
ADS7817
SDO 0
ISO130
MOSI/HA 0
AC Motor
• • •
R9
200Ω
R10
SD02
+
–
SS/HA2
System
GND
System
GND
RSENSE
System
GND
• • •
from
PWM
HV–
GND1
(Several
Hundred
Volts)
FIGURE 10. Motor Control Using the ISO130, ADS7817, and DSPS6004.
®
ADS7817
14
BB [ BURR-BROWN CORPORATION ]
