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Real-time reading circuit for encoder

A readout circuit and encoder technology, which is applied in the communication field, can solve the problems of difficult transplantation, troublesome application, and additional cost, and achieve the effects of compact circuit structure, improved work efficiency, and stable angle value output

Inactive Publication Date: 2018-03-13
赵俭
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method is simple to implement, it is relatively cumbersome to apply. It needs to transfer data to the computer at any time, which increases additional costs and is difficult to transplant.

Method used

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  • Real-time reading circuit for encoder

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Experimental program
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Effect test

Embodiment Construction

[0020] The present invention will be further described below in conjunction with drawings and embodiments.

[0021] Such as figure 1 , The voltage conversion circuit adopts XC6SLX9 of Xilinx Company's spartan6 series as the controller, and a 50 M crystal oscillator CRYSTAL is used to provide clock signals for it. The FPGA of spartan6 series is the FPGA device with mass application and the lowest cost newly launched by Xilinx. It adopts 45nm low-power copper process and achieves the best balance in cost, performance and power consumption. Because XC6SLX9-TQG144 needs to use 3.3 V and 1.2 V power supply, a step-down converter is used to convert the 5V voltage to the required voltage, so LT1764EQ and LT1764EQ3.3 step-down chips are used.

[0022] Such as figure 2 , In the spartan6 main serial mode configuration circuit, the FPGA is based on the SRAM process, so after power off, the FPGA returns to a blank chip, and the internal logic disappears, which greatly limits the applic...

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Abstract

A real-time reading circuit encoder is suitable for the field of communication and formed by a voltage conversion circuit, a spartan6 main-serial mode configuration circuit, a differential signal-to-common signal circuit, an LCD1602 configuration circuit and a serial communication configuration circuit. The real-time reading circuit encoder has a compact structure, low size, stable work great adaptability, can improve work efficiency, reduce power consumption, and has great interference immunity and reliability; and stable angle value output can be obtained.

Description

Technical field [0001] The invention relates to a real-time readout circuit of an encoder, which is suitable for the communication field. Background technique [0002] An encoder is a code that compiles and converts signals or data into signal forms that can be used for communication, transmission, and storage. Thereby detecting the speed, position, angle, distance or count of mechanical movement. In addition to being used in machinery, many motor controls such as servo motors need to be equipped with encoders for the motor controller to use as commutation. Photoelectric encoder is a sensor that converts the geometric displacement on the output shaft into pulse or digital quantity through photoelectric conversion. This is the most widely used sensor at present. The photoelectric encoder is composed of a grating disk and a photoelectric detection device. The grating disc is coaxial with the motor. When the motor rotates, the grating disc and the motor rotate at the same sp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F13/38G06F13/40G06F13/42
CPCG06F13/385G06F13/4068G06F13/4282G06F2213/0002G06F2213/3852Y02D10/00
Inventor 赵俭
Owner 赵俭