Phase synchronization control system and control method for linear motors
A linear motor and phase synchronization technology, which is applied in the direction of speed adjustment of multiple motors, can solve the problem of vibration loss and other problems, and achieve the effect of high adjustment accuracy
Inactive Publication Date: 2016-04-13
AAC MICROTECH CHANGZHOU
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Problems solved by technology
When multiple motors work at the same time, due to the difference in the parameters of the motor itself, it is easy to cause the loss of vibration sense due to phase mismatch.
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[0029] The present invention will be further described below with reference to the drawings and embodiments.
[0030] Taking dual motors as an example, the linear motor phase synchronization control system and its control method are described.
[0031] See figure 1 , Is a structural diagram of the linear motor phase synchronization control system of the present invention. The linear motor phase synchronization control system 1 includes a linear motor group 11, a signal input unit 12, a signal amplifying unit 13, a motor parameter module 14, a working parameter feedback module 15, a phase difference calculation module 16 and a phase control module 17.
[0032] The linear motor group 11 includes a first linear motor 111 and a second linear motor 112, so that the linear motor group 11 has a dual motor structure.
[0033] The signal input unit 12 includes a first signal input unit 121 and a second signal input unit 122. The first signal input unit 121 and the second signal input unit 122...
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The invention provides a phase synchronization control system for linear motors. The phase synchronization control system for the linear motors comprises a plurality of linear motors, a signal input unit, a motor parameter module, a working parameter feedback module, a phase difference calculation module and a phase control module, wherein the signal input unit is used for inputting a drive signal of each linear motor; the motor parameter module is used for storing a power coupling coefficient of each linear motor; the working parameter feedback module is used for feeding back a real-time working voltage and a coil current value of each linear motor; the phase difference calculation module is used for calculating equivalent mechanical impedance phase differences; and the phase control module is used for adjusting the drive signal of each linear motor, so that the plurality of linear motors synchronously vibrate. The phase synchronization control system for the linear motors provided by the invention adjusts relative phases of the motors when the motors simultaneously work, so that the linear motors synchronously vibrate. The invention further provides a phase synchronization control method for the linear motors.
Description
Technical field [0001] The invention relates to the technical field of vibration motors, in particular to a linear motor phase synchronization control system and a control method thereof. Background technique [0002] Vibration feedback is a form of feedback attached to mobile devices such as mobile phones and tablets. Its application range has gradually expanded from providing only the most basic functions such as call reminders to providing tactile feedback associated with applications and application scenarios. Functions, these functions are closely related to the user experience. [0003] Motors are the basic elements that provide vibration feedback in mobile devices. They usually include rotating motors, piezoelectric motors, and linear motors. Among them, linear motors (LRA, LinearResonantActuator) have an absolute advantage in providing tactile feedback functions related to applications and application scenarios due to their small size, long life, low power consumption, and...
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IPC IPC(8): H02P5/52
CPCH02P5/52
Inventor 葛欢叶利剑周荣冠
Owner AAC MICROTECH CHANGZHOU