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Motor controller and method

A motor controller, brushless motor technology, applied in the direction of excitation or armature current control, can solve the problems of DC voltage utilization, high cost, complex controller structure, etc., to improve DC voltage utilization, anti-interference ability Strong, cost-reducing effect

Inactive Publication Date: 2018-01-09
GUANGXI NORMAL UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a motor controller and method. The technical problems to be solved are: the controller has a complex structure, and the utilization rate and cost of DC voltage are relatively high.

Method used

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Embodiment Construction

[0046] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0047] Such as figure 1 As shown, a motor controller includes a single-chip circuit 1, an optical isolation circuit 2, an amplifier circuit 3, a switch circuit 4, a feedback circuit 5 and a brushless motor 6, and the single-chip circuit 1, the optical isolation circuit 2, and the amplifier circuit 3 , the switch circuit 4, the feedback circuit 5 and the brushless motor 6 are connected through lines in turn; the single-chip microcomputer circuit 1 is connected with the first power supply 8 through the linear voltage stabilizing circuit 7, and the switch circuit 4 is connected with the second power supply 9;

[0048] The single-chip microcomputer circuit 1 is used to generate a pwm direct current signal and transmit i...

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Abstract

The invention relates to a motor controller and a method. The motor controller comprises a single-chip microcomputer circuit, a photoelectric isolation circuit, an amplifying circuit, a switch circuit, a feedback circuit and a brushless motor. The single-chip microcomputer circuit generates a pwm direct-current signal, and adjusts the output of the pwm direct-current signal according to a positionsignal and a steering signal. The photoelectric isolation circuit is used for carrying out optoelectronic isolation on the pwm direct-current signal. The amplifying circuit is used for amplifying thepwm direct-current signal. The switch circuit is used for carrying out the conduction according to the pwm direct-current signal, and generating a pwm three-phase square wave signal. The brushless motor generates a circular magnetic field in the brushless motor according to the pwm three-phase square wave signal so as to control the operation of the rotor of the brushless motor. The feedback circuit detects the input current of the brushless motor in real time, acquires the position and the steering of the rotor, generates current, position and steering signals and transmits the signals to the single-chip microcomputer circuit. Compared with the prior art, the safety of the single-chip microcomputer circuit can be effectively ensured. Meanwhile, the anti-interference capability is high, and the circular magnetic field is synthesized. The direct-current voltage utilization rate is improved, and the cost is reduced.

Description

technical field [0001] The invention relates to the field of motor technology, in particular to a motor controller and method. Background technique [0002] Brushless DC motor is a new type of motor that has matured with the development of new power electronic devices and permanent magnet materials, and belongs to the category of synchronous motors. Although the development time of brushless DC motor in our country is short, it has developed rapidly with the increasing maturity and perfection of technology, and has been widely used in many fields such as medical equipment, household appliances, electric vehicles and so on. However, in the prior art, a brushless DC motor controller is often used, and the controller has a complex structure, low utilization rate of the DC voltage, and high cost. Contents of the invention [0003] The object of the present invention is to provide a motor controller and method, and the technical problems to be solved are: the controller has a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P7/28
Inventor 宋树祥张勇敢王宜瑜程洋
Owner GUANGXI NORMAL UNIV
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