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參數資料
| 型號： | MC1241A |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Advanced Brushless Motor Control Chipset |
| 中文描述： | 先進的無刷電機控制芯片組 |
| 文件頁數： | 1/70頁 |
| 文件大小： | 474K |
| 代理商： | MC1241A |
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Advanced Brushless Motor
Control Chipset
MC1231A
MC1131A
Supports 3-phase as well as 2-phase
brushless motors
Performs trajectory generation, servo
loop closure, and commutation
Ultra-smooth sinusoidal commutation
Open or closed loop operation
Software and feature-compatible with
other 1st generation PMD chipsets
Available in 1 or 2 axis configurations
32-bit position, velocity, acceleration and
jerk trajectory profile registers
Choice of S-curve, trapezoidal, or
contoured velocity profile modes
Electronic Gearing
Two travel-limit switches per axis
Choice of PWM or DAC motor output
signals
Easy-to-use packet-oriented command
protocol
Features
General Description
The MC1231A is a dedicated motion processor which functions
as a complete chip-based motor controller. Packaged in a 2-IC
chipset, this device performs trajectory generation, servo loop
closure, and sinusoidal commutation. The chipset inputs
incremental encoder signals and outputs PWM or
DAC-compatible motor command signals. The MC1231A is
available in a one, or a two-axis configuration.
The MC1231A is functionally similar to other members of
PMD's 1st generation chipset family however it adds the ability
to perform sinusoidal commutation of brushless motors. All of
these devices provide sophisticated motion control capabilities
allowing the creation of complex profile sequences with very low
tracking errors.
Both two and three-phase brushless motors are supported by
the MC1231A. When used with two-phase brushless motors
each phase is separated by 90 degrees. When used with
3-phase brushless motors each phase is separated by 120
degress. The commutation angle is continuously calculated
using the encoder position. User-programmable commutation
parameters allow a very wide range of encoders and motors to
be controlled.
The chipset is controlled by a host processor which interfaces
with the chipset via an 8-bit, bi-directional port. Communications
to/from the chipset consist of packet-oriented messages.
The chipset is packaged in 2 68-pin PLCC packages. Both
chips utilize CMOS technology and are powered by 5 volts.
Doc. Rev. 10.05, Nov 1997
Commutation Waveforms
Phase A
Phase B
Phase C
Phase A
Phase B
3-Phase Brushless
2-Phase Brushless
Performance Motion Devices, Inc. 12 Waltham St. Lexington, MA 02421 tel: 781.674.9860 fax: 781.674.9861
www.pmdcorp.com
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