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Control method of linear motor, linear motor, driving circuit and electronic equipment

A linear motor and drive circuit technology, applied in the electronic field, can solve problems such as large differences in vibration perception and customer complaints

Active Publication Date: 2020-06-05
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The characteristics of these materials bring great challenges to the consistency of damping during motor production, which eventually leads to large differences in vibration experience between mass-produced mobile phones, resulting in customer complaints

Method used

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  • Control method of linear motor, linear motor, driving circuit and electronic equipment
  • Control method of linear motor, linear motor, driving circuit and electronic equipment
  • Control method of linear motor, linear motor, driving circuit and electronic equipment

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Embodiment Construction

[0068] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the specific technical solutions of the present application will be further described in detail below in conjunction with the drawings in the embodiments of the present application. The following examples are used to illustrate the present application, but not to limit the scope of the present application.

[0069] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used herein are only for the purpose of describing the embodiments of the present application, and are not intended to limit the present application.

[0070] In the following description, references to "some embodiments" describe a subset of all possible embodiments, but it is understood that "some embodiments" may be the same subset...

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Abstract

The embodiment of the invention discloses a linear motor, and the linear motor comprises: a shell; and a vibration unit and at least two displacement determining assemblies, wherein the vibration unitand the at least two displacement determining assemblies are located in the shell, each displacement determining assembly comprises an induction coil and a first magnet, each displacement determiningassembly is arranged along two opposite sides of the vibration direction of the vibration unit, and when the vibration unit vibrates, the induction coil and the first magnet act together to generatean induction current for determining the displacement of the vibration unit in the vibration direction. The embodiment of the invention further discloses a control method of the linear motor, a driving circuit and electronic equipment.

Description

technical field [0001] The embodiment of the present application relates to electronic technology, and relates to but not limited to a method for controlling a linear motor, a linear motor, a drive circuit and electronic equipment. Background technique [0002] At present, in order to enhance the tactile experience of users, more and more electronic devices (such as mobile phones) are equipped with linear motors, because the vibration effect of linear motors is more delicate than that of eccentric motors. When the linear motor works, it can be equivalent to a combination of a free accompanying vibration system (ie, damping system) and a steady-state forced vibration system (ie, electromagnetic coil drive system). The size of the damping will directly affect the vibration effect of the motor. The greater the damping, the shorter the RT (Rise up Time) or BT (Bring down Time), but the smaller the vibration, so the user will feel Insufficient vibration. The smaller the damping...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K33/16H02K7/02H02P25/032
CPCH02K33/02H02K33/18H02P25/06H02P25/032Y02E60/16
Inventor 贾玉虎
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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