US 11,949,355 B2
Vibrator driving method, vibration driving system, and vibration driving equipment
Zheng Xiang, Shenzhen (CN); and Xuan Guo, Shenzhen (CN)
Assigned to AAC Acoustic Technologies (Shanghai)Co., Ltd., Shanghai (CN)
Filed by AAC Acousitc Technologies (Shanghai)Co., Ltd., Shanghai (CN)
Filed on Dec. 14, 2021, as Appl. No. 17/549,889.
Claims priority of application No. 202011562122.1 (CN), filed on Dec. 25, 2020.
Prior Publication US 2022/0209699 A1, Jun. 30, 2022
Int. Cl. H02P 25/032 (2016.01); G08B 6/00 (2006.01)
CPC H02P 25/032 (2016.02) [G08B 6/00 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A vibrator driving method, comprising steps of:
obtaining a preset vibration frequency and a resonant frequency of a target vibration motor;
obtaining total harmonic distortion of the target vibration motor;
obtaining at least one low distortion point of the target vibration motor according to the total harmonic distortion;
obtaining a target vibration frequency according to a low distortion frequency of at least one low distortion point and the preset vibration frequency;
driving the target vibration motor to vibrate according to the target vibration frequency.