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Motor and motor driving circuit

A motor drive circuit and motor drive technology, which is applied in the direction of electric components, single-phase motor control, electrical components, etc., can solve the problems of complex structure of forward and reverse control circuits, and achieve the effect of simple structure and strong versatility

Inactive Publication Date: 2018-05-25
JOHNSON ELECTRIC SHENZHEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the forward and reverse control circuits of some motors on the market are complex in structure.

Method used

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  • Motor and motor driving circuit
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  • Motor and motor driving circuit

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Experimental program
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other Embodiment approach

[0048] In other implementation manners, the stator winding 16 and the controllable bidirectional AC switch 26 are connected in series between the first node A and the second node B, and the external AC power supply 24 is connected to the first node A and the second node B. between Node B.

[0049] The first detection circuit and the second detection circuit detect the magnetic pole position of the motor rotor 11 respectively, and output a corresponding magnetic pole position signal, such as 5V or 0V, at their output terminals. The first detection circuit and the second detection circuit are preferably Hall sensors, such as linear Hall sensors or switch-type Hall sensors, which are respectively denoted as the first Hall sensor 22 and the second Hall sensor in this embodiment. twenty three. Of course, in other implementation manners, the first and second detection circuits may also be photoelectric encoders. Both the first Hall sensor 22 and the second Hall sensor 23 include a...

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PUM

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Abstract

The invention provides a motor and a driving circuit thereof. The driving circuit comprises a controllable bidirectional AC switch, a first detection circuit, a second detection circuit, a steering control circuit and an on-off control circuit, wherein the controllable bidirectional AC switch is connected with a stator winding at two ends of an AC power supply; the first detection circuit and thesecond detection circuit are used for detecting the magnetic pole position of a permanent magnet rotor and outputting a magnetic pole position signal at the respective output end; the steering controlcircuit selectively outputs the magnetic pole position signal outputted by the first detection circuit or the second detection circuit to the on-off control circuit according to steering setting of the motor; and the on-off control circuit controls the conducting state of the controllable bidirectional AC switch according to a signal outputted by the steering control circuit and polarity information of the AC power supply so as to control the motor to rotate positively or negatively. The motor driving circuit is simple in structure and good in universality.

Description

technical field [0001] The invention relates to the field of motor control, in particular to a motor and a motor drive circuit. Background technique [0002] Motor refers to an electromagnetic device that realizes the conversion or transmission of electric energy according to the law of electromagnetic induction. Its main function is to generate driving torque as a power source for electrical appliances or various machinery. Single-phase permanent magnet motors are widely used in various electrical products because of their simple operation and convenient control. However, the forward and reverse control circuits of some motors on the market are complicated in structure. Contents of the invention [0003] In view of this, it is necessary to provide a motor drive circuit for controlling forward and reverse rotation of a motor with simple structure and convenient operation, and a motor with the motor drive circuit. [0004] An embodiment of the present invention provides ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P6/26H02P6/28H02P6/30H02K11/215
Inventor 孙持平杨修文杨圣骞黄淑娟蒋云龙
Owner JOHNSON ELECTRIC SHENZHEN
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