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MC1141A 데이터시트(PDF) 1 Page - List of Unclassifed Manufacturers |
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1 / 60 page Internal generation of microstepping signals 2-phase as well as 3-phase stepper motors 64 microsteps per full step S-curve, trapezoidal, and velocity profile trajectory modes Incremental encoder feedback On-the-fly motor stall detection Software & feature compatible with other versions of PMD's chipset family Available in 1 or 2 axis configurations 32-bit position, velocity, acceleration and jerk trajectory profile registers Electronic Gearing Two travel-limit switches per axis Choice of PWM or DAC motor output signals Chipset Developer's Kit Available Features General Description The MC1241A is a dedicated motion processor which functions as a complete chip-based stepper motor controller. Packaged in a 2-IC chipset, this device performs trajectory profile generation and microstepping signal generation. The chipset outputs PWM or DAC-compatible motor command signals which directly drive the windings of the stepping motor, eliminating the need for external microstepping circuitry. The MC1241A also provides the ability to input incremental encoder signals. It is available in a one, or a two-axis configuration. The MC1241A is functionally similar to other members of PMD's 1st Generation Motion Processor Family however it adds the ability to perform micrstepping signal generation. All of these devices provide sophisticated trajectory generation allowing the creation of complex motion sequences. Both two and three-phase stepping motors are supported by the MC1241A. An internal ROM-based lookup table is used to generate the microstepping waveforms. The motor power level can be controlled with a resolution of 16 bits. Changes to the motor power level can be coordinated with other profile changes to optimize motor heat dissipation under different load and acceleration conditions. 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. 11.03, Nov 1997 Microstepping Waveforms Phase A Phase B Phase C 64 128 192 256 120 Deg Phase A Phase B 90 Deg 3-Phase Stepper 2-Phase Stepper 320 Microsteps Performance Motion Devices, Inc. 12 Waltham St. Lexington, MA 02421 tel: 781.674.9860 fax: 781.674.9861 www.pmdcorp.com Advanced Microstepping Motion Control Chipset MC1241A MC1141A |
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