Product category:
Microprocessors, Microcontrollers and DSPs
News Release from: AMI Semiconductor | Subject: EVK-3062x evaluation kit
Edited by the Electronicstalk Editorial
Team on 12 November 2004
Single chip technology allows rapid
implementation
A stepper motor evaluation kit from AMI Semiconductor demonstrates integrated stall detection for robust motion control without sensors or software.
AMI Semiconductor (AMIS) has expanded its high-resolution single-chip motor driver/controller capability with a new technology that allows engineers to rapidly implement sensorless stall-detection into stepper motor-based designs This technology is demonstrated in the new EVK-3062x evaluation kit, which is based on the company's 800mA bipolar 2-phase stepper motor driver/controller ICs
This article was originally published on Electronicstalk on 26 Mar 2001 at 8.00am (UK)
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Designed to simplify the development of remote and multiple axes positioning applications, the EVK-3062x kit combines a Graphical User Interface, USB connection, a central board with connection cables and supply, a demonstration motor, and four miniature PCBs ( "stamps") featuring AMIS-3062x single-chip stepper motor driver samples.
These samples comprise a family of devices providing key motor driver and controller functions including stall detection.
Offering LIN and/or I2C connectivity, the EVK-3062x will suit the development of a variety of automotive, industrial and commercial motion control applications.
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By providing integrated stall detection, the new evaluation kit allows designers to develop silent yet accurate position calibration, and semi-closed loop operation when approaching mechanical end stops.
As a result, noise and vibration at end-stops can be eliminated and motion control accuracy and reliability can be improved without the need for optical encoders, position sensors or software algorithms.
By offering a dedicated LIN interface, the AMIS-30623 'stamp' in the EVK-3062x can be used in development of mechatronics solutions that are connected remotely to a LIN master.
Compared to solutions with centrally placed drivers, the LIN bus saves wiring cost and leads to improved EMC performance - key issues for automotive and industrial applications that are expected to operate in cost-sensitive, harsh and electrically noisy environments.
The dedicated I2C serial interface provided by the EVK-3062x when configured with the AMIS-30624 'stamp' allows engineers to evaluate and develop solutions in which the IC is a peripheral device situated next to a host microcontroller on a single PCB.
Each AMIS-3062x IC is designed for operation at temperatures from -40:C to 125:C, can deliver programmable peak currents up to 800mA, and has advanced diagnostics features.
The on-chip position controller is configurable for different motor types, positioning ranges and parameters including speed, acceleration and deceleration.
Devices also incorporate a hold current feature, while a power down supply current of under 1005A (micro Amps) ensures minimum power consumption when the IC is not operational.
Discussing the new evaluation kit, Robert Klosterboer, senior vice president for integrated mixed-signal products at AMIS states: "These kits demonstrate our advanced mixed-signal semiconductor process technologies that allow high-current drivers, high- precision sensors and digital control functions to be integrated into a single IC.
By combining position control, driver functionality, bus connectivity and stall detection in a single device, we are providing designers with a way to improve the performance and reliability of stepper motor-based applications while minimizing cost, component count and time-to-market." Pricing for the EVK-3062x is $350 per kit.
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