Motor encoding systems have 3-channel reflective encoders

Avago Technologies’ 3.95 mm by 3.4 mm, integrated modules feature built-in interpolator for high-resolution motion feedback in commercial, industrial applications.

03/31/2011


AvagoAvago AEDR-8500 encoders Technologies, a supplier of analog interface components for communications, industrial and consumer applications, released a three-channel reflective encoder. The AEDR-850x encoders feature built-in interpolation for high-resolution measurement that is useful for a wide range of applications, including closed-loop stepper motors, miniature motors, printers, copiers, card readers, insulin pumps and other types of industrial, consumer and medical equipment.

A standard reflective encoder module contains two digital output channels for direction sensing, with another module required for indexing purposes. For motion feedback applications requiring high-resolution measurement, an external interpolation device had previously been necessary. The Avago AEDR-850x reflective encoder integrates an LED light source, photo-detecting and interpolator circuitry, and the three channels in a single package with a 3.95-mm-by-3.40-mm footprint. With high resolution encoding of 304 lines per inch (12 lines per mm), the modules enable a miniaturization for applications where size and space are primary concerns.

“The integrated third-channel, compact size and high-resolution encoding performance of the Avago AEDR-850x modules is truly revolutionary, enabling smaller motor encoding systems than ever before possible,” said Hassan Hussain, general manager of the Motion Control Products Division at Avago. “These innovative modules cut design costs and save PCB board space for our customers, and expand the reach of our reflective encoder offerings into the industrial automation and medical segments.”

The AEDR-850x encoders offer interpolation of up to 4X and enable various resolution designs by changing the codewheel size. The optical-based modules are significantly less susceptible to EMI compared with Hall Effect devices. With an absolute operating temperature range of -20° C to 85° C, the encoders are suitable for a wide range of commercial and industrial operation environments.

Additional AEDR-850x features include: small surface mount leadless package measuring 3.95 mm by 3.40 mm by 0.95 mm, TTL compatible, allowing outputs to be interfaced directly with most of the signal processing circuitries, factors of 1X, 2X and 4X for interpolation selectable via external pinouts, and a single 5 V supply.

www.avagotech.com

Avago Technologies

- Edited by Gust Gianos, Control Engineering, www.controleng.com



No comments
The Engineers' Choice Awards highlight some of the best new control, instrumentation and automation products as chosen by...
The System Integrator Giants program lists the top 100 system integrators among companies listed in CFE Media's Global System Integrator Database.
The Engineering Leaders Under 40 program identifies and gives recognition to young engineers who...
This eGuide illustrates solutions, applications and benefits of machine vision systems.
Learn how to increase device reliability in harsh environments and decrease unplanned system downtime.
This eGuide contains a series of articles and videos that considers theoretical and practical; immediate needs and a look into the future.
Sensor-to-cloud interoperability; PID and digital control efficiency; Alarm management system design; Automotive industry advances
Make Big Data and Industrial Internet of Things work for you, 2017 Engineers' Choice Finalists, Avoid control design pitfalls, Managing IIoT processes
Engineering Leaders Under 40; System integration improving packaging operation; Process sensing; PID velocity; Cybersecurity and functional safety
This article collection contains several articles on the Industrial Internet of Things (IIoT) and how it is transforming manufacturing.

Find and connect with the most suitable service provider for your unique application. Start searching the Global System Integrator Database Now!

SCADA at the junction, Managing risk through maintenance, Moving at the speed of data
Flexible offshore fire protection; Big Data's impact on operations; Bridging the skills gap; Identifying security risks
The digital oilfield: Utilizing Big Data can yield big savings; Virtualization a real solution; Tracking SIS performance
click me