Vibration system, control method and electronic equipment of a linear motor group

Abstract

The invention discloses a linear motor group oscillatory system, and a control method thereof. The oscillatory system comprises driving circuits, a control circuit and a linear motor group; the control circuit is electrically connected with the linear motor group, and the driving motor is electrically connected with a control chip; each driving circuit is connected with a linear motor correspondingly, and the control circuit is electrically connected with N driving circuits at the same time; each driving circuit takes the resonant frequency of the corresponded linear motor as the driving frequency to drive the corresponded linear motor; and the starting sequence and the starting time difference of N linear motors are determined according to time t, the largest vibration amplitude of each linear motor. The invention discloses electronic equipment. According to the linear motor group oscillatory system, the control method thereof and the electronic equipment, the resonant frequency of each driving circuit is taken as the driving frequency to drive corresponded linear motor, so that maximization of the oscillatory range of linear motor monomer can be obtained; the phase difference ofthe maximized monomer oscillatory ranges of different linear motors are eliminated, and thus the oscillatory range of cooperative work of multiple linear motors is maximized.

Description

technical field [0001] The invention relates to the field of touch technology, in particular to a linear motor group vibration system, a control method and an electronic device. Background technique [0002] The touch screen is an input device that realizes human-computer interaction, and it has the advantages of intuition, simplicity, and speed. With the trend of large-screen terminal electronic equipment such as mobile phones, home appliances, and vehicles, the size and weight of display touch modules are getting larger and heavier. The display and touch modules of these products generally use linear motors for vibration drive. However, limited by the size and performance of linear motors, it is difficult for a single linear motor to provide sufficient vibration. Therefore, it is a relatively obvious trend to use multiple linear motors to work together to obtain sufficient and uniform vibration. However, the performance of different linear motors varies greatly due to d...

AI Technical Summary

Problems solved by technology

However, the performance of different linear motors varies greatly due to different individuals, especially different motors generally have different resonant frequencies, and the difference in resonant frequency will cause many problems when multiple linear motors vibrate together, and even vibrate in severe cases attenuation of

Strictly controlling the resonant frequency range of multiple linear motors in the process will lead to a significant increase in cost

If all linear motors are driven with the same drive frequency, the vibration intensity of the motor whose drive frequency deviates more from the resonance frequency will be greatly reduced

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