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參數(shù)資料
| 型號(hào)： | PWR-82333-12 |
| 廠商： | DATA DEVICE CORP |
| 元件分類： | 運(yùn)動(dòng)控制電子 |
| 英文描述： | BRUSHLESS DC MOTOR CONTROLLER, 50 A, UFM26 |
| 封裝： | 3 X 2.100 INCH, 0.390 INCH HEIGHT, PACKAGE-26 |
| 文件頁(yè)數(shù)： | 13/16頁(yè) |
| 文件大?。?/td> | 564K |
| 代理商： | PWR-82333-12 |
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6
DIGITALLY CONTROLLED INPUTS
The PWR-82331/333 uses Schmitt triggered digital inputs (with
hysteresis ) to ensure high-noise immunity. The trigger switches
at different points for positive and negative going signals.
Hysteresis voltage (VH) is the difference between the positive
going voltage (VP) and the negative going voltage(VN) (see FIG-
URE 7).
The digital inputs have programmable logic levels,
which allows the hybrid to be used with different types of com-
mutation logic with an input voltage range of +5 V to +15 V, such
as TTL or CMOS logic. The PWR-82331/333 internal power sup-
ply generates a +15 Vdc (VLPO) on pin 15. This output can only
be used to power the internal digital circuitry within the hybrid.
Do not use this +15 V output to power any circuitry external
to the hybrid. Pin 16 is the logic power input (VLPI) for the dig-
ital circuitry inside the hybrid. A 0.01
F, +50 V ceramic capac-
itor must be placed between this pin (16) and GND as close
to the hybrid as possible. When using +15 V control circuitry,
the logic power input (pin 16) can be connected directly to logic
power output (pin 15) of the hybrid. There is no need for addi-
tional external power supply.
When using +5 V control logic, an external +5 Vdc supply
must be connected between pin 16 of the hybrid and the
GND - leave Pin 15 open (N/C). The commutation/control cir-
cuitry can be as simple as discrete logic with PWM, or as sophis-
ticated as a microprocessor or custom ASIC, depending on the
system requirements. The block diagram in FIGURE 8 shows a
typical interface of the PWR-82331/333 with a motor and com-
mutation logic in a servo-amp system.
INTERFACING WITH OPTOCOUPLERS
Optocouplers should be used when the commutation logic can-
not be located directly next to the motor drive (within 1"- 2" from
the input) or a current sensing resistor is placed between VSS
and POWER RTN (see FIGURE 9). The optocouplers minimize
the differential ground voltage drop between the logic grounds
and the VSS connections. Optocouplers are also required when
+5 V logic is used to control the motor drive.
N
FIGURE 7. HYSTERESIS DEFINITION AND CHARACTERISTICS
0.1
f
1
FIGURE 8. PWR-82331/82333 TYPICAL INTERFACE WITH A MOTOR AND COMMUTATION LOGIC
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| PWR-82333-30 | BRUSHLESS DC MOTOR CONTROLLER, 50 A, UFM26 |
| PWR-82331-16L | BRUSHLESS DC MOTOR CONTROLLER, 50 A, UFM26 |
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| PWR-82331-14L | BRUSHLESS DC MOTOR CONTROLLER, 50 A, UFM26 |
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