Wide-voltage range signal shunt based on FPGA

Abstract

A wide pressure range signal shunting-implement based on FPGA program frequency divider, 2-digitization comparator and arithmetic counter by hardware described language VHDL and integrates into one FPGA1. The fan-out to frequency divider of FPGA1 connects with the input-port to 2-digitization comparator and the fan-out to 2-digitization comparator connects with the input-out to arithmetic counter. One end to the wide pressure signal accepting and photoelectric insulation module connects with the +5-+24VDC signal input-port, the other end connects with two or more than two same FPGA. It owns wide press range for +4VDC-+26VDC, and well insulation effect, goo wave quality, easy removing and strong anti-jamming nature. The characteristic is small volume, low cost, short exploitation cycle and suited for abominable industry environmental.

Description

technical field [0001] The invention belongs to a signal separation device for a wide voltage range encoder. In particular, it relates to an FPGA-based wide voltage range signal splitter. Background technique [0002] Encoders are widely used in the collection of industrial motor parameters. Modern industry often requires the signal collected by the encoder to be sent to more than one device such as frequency converter, terminal monitor, etc. It is often not feasible to install more than one encoder on the same motor, so it is particularly important to separate and duplicate the signals collected by the encoders. BALDOR's OPT029-501 is an encoder signal separation device, but this product has obvious defects: first, this product does not perform photoelectric isolation on the signals that need to be separated, resulting in a relatively narrow application range; second, the input of this product The output voltage is a fixed value of 5VDC, which cannot be adjusted within a...

AI Technical Summary

Problems solved by technology

BALDOR's OPT029-501 is an encoder signal separation device, but this product has obvious defects: first, this product does not perform photoelectric isolation on the signals that need to be separated, resulting in a relatively narrow application range; second, the input of this product The output voltage is a fixed value of 5VDC, which cannot be adjusted within a certain voltage range, so it cannot meet the input voltage requirements of some receiving equipment; finally, this product cannot correct and reshape the signal collected by the encoder according to the actual situation on site

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