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參數資料
| 型號： | PWR-82521-170K |
| 廠商： | DATA DEVICE CORP |
| 元件分類： | 運動控制電子 |
| 英文描述： | BRUSHLESS DC MOTOR CONTROLLER, 18 A, DMA41 |
| 封裝： | DIP-41 |
| 文件頁數： | 1/12頁 |
| 文件大小： | 150K |
| 代理商： | PWR-82521-170K |
1
June 1, 1999; Data Device Corp.
DESCRIPTION
The PWR-82521 is a high perfor-
mance current regulating torque loop
controller. It is designed to accurately
regulate the current in the windings of
3-phase brushless DC and brush DC
motors.
The PWR-82521 is a completely self-
contained motor controller that con-
verts the analog input command sig-
nal into motor current and uses the
signals from Hall-effect sensors in the
motor to commutate the current in the
motor windings. The motor current is
internally sensed and processed into
an analog signal.
This signal is
summed together with the command
signal to produce an error signal that
controls the pulse width modulation
(PWM) duty cycle of the output, thus
controlling the motor current.
The
PWR-82521 can be tuned by using an
external Proportional-Integral (PI) reg-
ulator network in conjunction with the
internal error amplifier.
APPLICATIONS
Packaged in a small DIP-style hybrid,
the PWR-82521 are ideal for applica-
tions with limited printed circuit board
area.
The PWR-82521 is ideal for applica-
tion requiring current regulation and/or
holding torque at zero input com-
mand.
System applications include
flight surface control on aircraft for
horizontal stabilizers and flaps, missile
fin control, fuel and hydraulic pumps,
radar and countermeasures systems.
3-PHASE DC MOTOR TORQUE CONTROLLER
FEATURES
200V Rating
10 Amp Continuous Output Current
Complementary Four-Quadrant
Operation
3% Linearity Accuracy
5% Current Regulating Accuracy
User-Programmable Compensation
10 kHz - 50 kHz PWM Frequency
Operates as Current or Voltage
Controller
Self-Contained 3-Phase Motor
Controller
Built-in Current Limit
FIGURE 1. PWR-82521 BLOCK DIAGRAM
PWR-82521
DRIVE
A
DRIVE
B
DRIVE
CURRENT
C
PHASE A
14,15,16
PHASE A
PHASE B
7,8,9
PHASE B
PHASE C
1,2,3
PHASE C
VBUS+
4,5,6
PWM
LOGIC
CIRCUITRY
COMMUTATION
LOGIC
HA
HB
HC
5.0V
10K 10K 10K
VBUS–
11,12,13
Rsense
PWM IN
VDD
+
10K
5.0V
ERROR
AMPLIFIER
100
-
+
-
+
AMP
COMMAND
BUFFER
100
10K
HALL A
COMMAND OUT
COMMAND IN +
COMMAND IN -
+15V
+15V HALL SUPPLY OUTPUT
SUPPLY GND
ENABLE
+15V SUPPLY
GROUND
-15V SUPPLY
PWM OUT
PWM GND
39
COMMAND GND
37
36
38
35
34
33
32
31
30
29
28
27
26
21
19
17
40
41
20
CASE GND
CASE
ERROR AMP OUT
ERROR AMP IN
CURRENT
MONITOR OUT
100
22
SYNC IN
VEE
IS+
10
HALL B
HALL C
HALL
90.9
PRELIMINARY
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