Quadrature encoders have many uses in position-sensing applications. This implementation uses a Xilinx complex programmable logic device (CPLD) to count the pulses from the encoder and determine the ...

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The sensing mechanism in an incremental optical rotary encoder consists primarily of a light source, code wheel, and optical detector. As the code wheel turns, a ring of alternating opaque and ...

The LS7082N1, LS7083N, LS7084N, LS7183N and LS7184N quadrature clock converters interface incremental encoders to counting devices by converting outputs into up/down clocks or clock and direction ...

Encoders are widely used to help control machine position and speed. Typical encoder output, a series of quadrature signals, consists of two full square waves, offset by 90° in phase. The number of ...

Providing a 32-bit-wide datapath, the four 60-MHz TMS320F280xx DSP-based controllers include an on-chip, 12-bit ADC and QEP (quadrature-encoder-pulse) interfaces. A timer captures and compares the ...

This article is part of the Ideas for Design Series: Vol. 3, No. 8. In many applications, accurately sensing the position of an electrically controlled mechanical device such as a motor is critical.

Last year, Automation World examined the differences between accuracy, resolution, and precision in the encoder world. And while understanding the differences among these terms is important to ...