An 8-channel brushless DC motor drive circuit based on mcu and fpga

Abstract

The invention discloses a 8-way brush-less direct current motor drive circuit based on an MCU and an FPGA. The 8-way brush-less direct current motor drive circuit based on the MCU and FPGA comprises a CAN drive circuit, an MCU module and an FPGA module; a CAN communication circuit is connected with a CAN bus interface of the MCU module through an CAN bus interface, the MCU module is connected with an ordinary IO interface of the FPGA module through an FSMC bus interface, and the FPGA module is respectively connected with control interfaces of the 8-way brush-less direct current motor drive circuit through ordinary IO interfaces; the structures of the eight ways of the brush-less direct current motor drive circuit are the same. The 8-way brush-less direct current motor drive circuit based on the MCU and FPGA can meet the multi-motor control requirement of improved spinning mechanism equipment, compared with the existing single-motor drive circuit, the brush-less direct current motor drive circuit is capable of independently controlling 8 ways of brush-less direct current motors, the structure is simple, the work is stable, the cost is low, and the maintenance and use are facilitated.

Description

technical field [0001] The invention belongs to the technical field of power electronics, and in particular relates to an 8-channel brushless DC motor drive circuit based on MCU and FPGA. Background technique [0002] Yarn forming is the key technology that affects the quality of spinning. Traditional textile machinery and equipment, such as staple fiber twisters, chemical fiber two-for-one twisters, air spinning machines, texturing machines, doubling machines, grooved drum machines, and covered yarns Machine, direct twisting machine, etc., whether imported from abroad or independently developed at home, the yarn guide wheel forming system is composed of a large number of mechanical structures, including gear transmission mechanism, cam reciprocating mechanism, gear lubrication mechanism, trimming device, etc. , the gear box drives the traverse rod to traverse left and right, thereby driving the yarn guide device to make the yarn regularly and evenly wound on the bobbin. Th...

AI Technical Summary

Problems solved by technology

These textile machinery equipment all have the following deficiencies: ①The whole set of mechanism is composed of cast iron parts, which is large in size, heavy in weight, and consumes a lot of energy for the whole machine; maintenance is troublesome and requires a lot of manpower

②The mechanism is composed of many gear transmissions, which has the problem of wear and occlusion, high wear and high failure rate; ③The reciprocating cam has the inherent disadvantage that the reciprocating speed cannot be too high, which leads to low efficiency of the whole machine due to the limitation of the guide wire speed in some textile machines. Low output; ④ Many high-demand moldings cannot be completed, such as irregular anti-folding molding; ⑤ Gearbox lubricating oil needs to be replaced frequently, twice a year, 15 kg each time. It needs to use special antifreeze lubricating oil, and the maintenance cost is high; ⑥The stroke of the guide wire is relatively short, generally 170mm-200mm, if it is necessary to increase the stroke, the volume and weight of the gearbox must be increased; ⑦The frequency of traverse is not easy to control, In particular, the frequency of traversing cannot match the winding speed, which affects the quality of the finished yarn

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