Two-phase signal processing circuit of rotary encoder and signal processing method thereof

Abstract

The invention relates to the field of radio-frequency identification and discloses a two-phase signal processing circuit of a rotary encoder and a signal processing method thereof. The two-phase signal processing circuit includes a signal conversion unit, a pulse generating unit and a triggering unit. An input end of the signal conversion unit is used as an input end of the two-phase signal processing unit. An output end of the triggering unit is used as an output end of the two-phase signal processing circuit. The signal conversion unit processes two-phase signals and outputs serial data. The pulse generating unit processes the serial data and outputs pulse signals. The triggering unit latches the pulse signals and outputs rotary pulse output signals. The signal conversion unit includes a gate circuit. The pulse generating unit includes a trigger. The triggering unit includes a trigger. The two-phase processing circuit of the rotary encoder is capable of processing the two-phase signals output by the rotary encoder into stable and independent pulse signals through use of the simple circuit units so that the structure of the two-phase signal processing circuit of the rotary encoder is simplified and the cost is reduced.

Description

technical field [0001] The invention relates to the field of signal processing, in particular to the technology of two-phase signal processing of a rotary encoder. Background technique [0002] A rotary encoder is an electromechanical device that converts a rotary position or quantity into an analog or digital signal. It is generally installed on the side of the vertical rotation axis in the rotating object. Rotary encoders are used in many occasions that require precise rotational position and speed, such as industrial control, robotics, special lenses, computer input devices (such as mice and trackballs), etc. The dual-output rotary encoder outputs two sets of A / B pulses with a phase difference of 90 degrees. Through these two sets of pulses, not only the rotational speed can be measured, but also the direction of rotation can be judged. Rotary encoders are widely used in real life. [0003] In the existing technology, the two-phase signal output by the rotary encoder n...

AI Technical Summary

Problems solved by technology

In this way, it is necessary to carry out single-chip microcomputer development and program design in the early stage, the implementation method is complicated, the design and use cost is high, and the reliability is poor.

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